Bsi bs au 050 1 2 1b 2001 (iso 4209 1 2001)

Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

BRITISH STANDARD AUTOMOBILE SERIES

BS AU
50-1 .2.1 b:2001
ISO
4209-1 :2001
Incorp o rating
Corrigendum No .

Truck and bus tyres
and rims
(metric series) —
Part 1 : Tyres

I C S 83 . 1 6 0 . 1 0

NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW

1


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

BS AU 50-1 .2.1 b:2001

National foreword
This B ritis h S tandard rep roduces verb atim IS O 4 2 09 - 1 : 2 00 1 and implements
it as the UK national s tandard. It s up ersedes BS AU 5 0 - 1 . 2 . 1 a: 1 9 95 which is
withdrawn.

The UK p articip ation in its p rep aration was entrus ted to Technical C o mmittee
AUE /4 , Tyres and wheels for motor vehicles , which has the resp onsib ility to:

—

—

aid enquirers to unders tand the text;

p res ent to the res pons ib le international/E urop ean comm ittee any
enquiries on the interp retation, or p rop osals for change, and keep the
UK interests informe d;

—

monitor re lated international and E urop ean develop ments and
p rom ulgate them in the UK.

A list of organiz ations rep resented on this committee can b e ob tained on
reques t to its s ecretary.

C ross-references
The Britis h S tandards which imp lem ent international or E urop ean
p ub lications refe rred to in this document may b e found in the BS I S tandards
C atalogue under the s ection entitled “International S tandards C orresp ondence
Index”, or b y using the “Find” facility of the BS I S tandards E lectronic
C atalogue.

A Britis h Standard does not p urport to include all the necess ary p rovisions of

a contract. Us ers of British S tandards are resp onsib le for their correct
ap p lication.

Compliance with a British Standard does not of itself confer immunity
from legal obligations.

Summary of pages
This document comp ris es a front cover, an ins ide front cover, the ISO title
p age p ages ii to iv, p ages 1 to 1 9 and a b ack cover.
This Britis h S tandard, having
b ee n p rep ared under the
direc tion of the E nginee ring

The BS I cop yright date disp layed in this document indicates when the
document was last is sued.

S ector P olicy and S trategy
C o mmittee, was p ub lis he d
under the authority of the
S tandards Polic y and S trategy
C o mmittee on
2 1 S ep tem b er 2 0 01

Amendments issued since publication

© BS I 0 8 O cto b er 2 001

ISBN 0 5 80 385 0 4 3

Amd. No.

D ate

C omments

1 351 2

08 O ctob er 2 001

C orrected IS BN inserted

C orrigendum No. 1


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I N TE RN ATI ON AL
STAN D ARD

I SO
4209-1

Si xth ed i ti on
2001 -09-01

Tru ck an d bu s tyres an d ri m s
(m etri c seri es) —
Part 1 :

Tyres

Pneumatiques et jantes (séries millimétriques) pour camions et autobus —
Partie 1: Pneumatiques

Reference nu m ber
I SO 4209-1 :2001 (E)

© OSI 1 002


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

DPF d l csirem i a
i h Ts

eb

PDF

i d e te d

f, e l i

fi l e

m ya

l n u es s

trap i es

c tn o ai n

te h

ac c e pt

em d e d d e b

tyfe p ac s e

tn i e re h

te h

wh i c h

t yfe p caes .

ae r

In

acc cn ad ro e

em d e d d e b

s e rs n o pti l i b i y

of

to n

e ra

wi th

l i c n es e d

n i frg n i g n i

to

A' e bo d s

dna

As ' e b o d

l i c n es i g n

i n ts l al e d

l i csn eg n i

on

l o pi c, y

te h

i l o pc y.

th i s

c om pu tre

eh T

I SO

fi l e

m ay

be

fre p o rm i n g

tn e C l ar

pi rn t d e

te h

ro

i vwed e

i d e ti g n .

In

tu b

s l ah l

to n

wo d l n i d ao g n

th i s

no

th i s

S ec te raai rt

ac c e pts

l i l i bai t y

th e

P c- F D ae rt i o n

ni

. ae ra

Ae bo d

is

te D ai l s

we re

t tah

©

Al l

ro

in

fo

te d arm akr

th e

a

p l bo rem

I SO

fo r

Ae bo d

pcu d o rts

pi rtn i n g .

l e rati g n

to

it

S ts yem s

su d e

E vyre

is

to

c e ra

f, d n u o

I cn taro pro . d e

c rtae e

s ah

l p s ae e

ti h s

n eeb

P FD

t ake n

i fn rom

te h

fi l e

to

c an

be

e n s e ru

fd n u o

tah t

teh

tn e C l ar S ce te rai rat

in

th e

fi l e

at

is

th e

G l are n e

s u i tl bae

s s e rd d a

I n fo

fro

l e rati e v

su e

g i vn e

by

to

I SO

fi l ; e

th e

m em re b

i d ob. se

In

te h

arapm te res

l n u i kl e y

e tn e v

l e b wo.

1 002

rh g i ts

rs e vre . d e

m e c i n ah c al ,

th e

fo

s fo t we ra

tpo i m i z d e

c tn u o yr

I SO

el n U ss

i n cl i d u g n

of

th e

c i ryp o th g

s aC e

ts o p al e

s ce pfi d e i ,

dna

on

trap

m i c rfo i l m ,

of

ti h s

wi t tu o h

ci l bu p tan o i

m ya

re pm i s s i n o

in

eb

cu d o rp e rd e

wri ti n g

fo rm

ro

ei tre h

u tz i l i d e

I SO

at

ni

te h

yn a

fo rm

e rd d as s

ro

yb

l e b wo

yn a

ro

s n ae m ,

I S O' s

e e l c t i n o rc

m em re b

yd o b

rts e u q e e . r

fo fi c e

65

·

1 1 21 -H C

+

41

22

9 47

1 0

1 1

xaF

+

1 4

22

947

90

74

e Wb

to wre h i s e

to h p oc i yp o n g

l e T.

E - m ai l

ii

a

ave n e G

20

c i rypo th g i @ s o . c h

www. i s o . c h

© I SO

1 002

– Al l

i rh g t s

s e re d e vr


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

ISO 4209-1 :2001 (E)

Contents

Pag e

Foreword ...................................................................................................................................................................... v
1

Scope .............................................................................................................................................................. 1

2

Normative reference ...................................................................................................................................... 1

3

Terms and definitions ................................................................................................................................... 1

4
4.1
4.2
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.3
4.3.1
4.3.2
4.3.3

4.4
4.5

Tyre designation ............................................................................................................................................ 1
Content ........................................................................................................................................................... 1
Size and construction ................................................................................................................................... 2
Marking ........................................................................................................................................................... 2
Nominal section width ................................................................................................................................... 2
Nominal aspect ratio ..................................................................................................................................... 2
Tyre construction code ................................................................................................................................. 2
Nominal rim diameter .................................................................................................................................... 2
Service condition characteristics ................................................................................................................ 2
Marking ........................................................................................................................................................... 2
Load index ...................................................................................................................................................... 3
Speed symbol................................................................................................................................................. 3
Other service ch aracteristics ....................................................................................................................... 3
Example .......................................................................................................................................................... 3

5
5.1
5.1 .1
5.1 .2

Tyre dimensions ............................................................................................................................................ 4
Calculation of "design" tyre dimensions .................................................................................................... 4
Coefficients .................................................................................................................................................... 4
Theoretical rim width, th .............................................................................................................................. 4

5.1 .3

Measuring rim width,

5.1 .4
5.1 .5
5.1 .6

Design tyre section width, ......................................................................................................................... 4
Design tyre section height, ....................................................................................................................... 4
Design tyre overall diameter, o .................................................................................................................. 4

5.1 .7
5.2
5.2.1

Values ............................................................................................................................................................. 5
Calculation of "maximum overall tyre dimensions in service"................................................................. 5
Maximum overall width in service, m ax ..................................................................................................... 5

R
R

m

............................................................................................................................... 4

S
H

D

W

D

............................................................................................. 5

5.2.2

Maximum overall diameter in service,

5.3
5.4

Minimum dual spacing (MDS)....................................................................................................................... 5
Approved rim widths ..................................................................................................................................... 7

6

Tyre dimension tables ................................................................................................................................... 8

7

Method of measurement of tyre dimensions .............................................................................................. 8

8
8.1
8.2
8.3

Service characteristics.................................................................................................................................. 8

Tyre load-carrying capacity .......................................................................................................................... 8
Speed symbol................................................................................................................................................. 8
Load-carrying capacity at various speeds .................................................................................................. 9

o, m ax

Annex A

(i n form ati ve)

Guideline valu es for metric series, 5 ° rims ...................................................................... 1 2

Annex B

(i n form ati ve)

Guideline valu es for metric series, 1 5 ° rims .................................................................... 1 5

Annex C

(i n form ati ve)

Tyre dimension tables ........................................................................................................ 1 9

© I SO 1 002

– Al l

ri g hts rsedevre

iii


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, governmental and non-governmental, in
liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this part of ISO 4209 may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 4209-1 was prepared by Technical Committee ISO/TC 31 , Tyres, rims and valves,
Subcommittee SC 4, Truck and bus tyres and rims.
This sixth edition cancels and replaces the fifth edition (ISO 4209-1 :1 993), which has been technically revised.
ISO 4209 consists of the following parts, under the general title Truck and bus tyres and rims (metric series):

—
—

Part 1: Tyres
Part 2: Rims

Annexes A, B and C of this part of ISO 4209 are for information only.

iv

© ISO 1 002 – All rights rsedevre


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I NTERN ATI ON AL STAN DARD

I SO 4209-1 : 2001 (E)

Tru ck an d bu s tyres an d ri m s (m etri c seri es)

—

Part 1 :

Tyres

1

Scope

Th i s part of I SO 4209 speci fi es th e d esi g n ati on , d i m en si on s an d l oad rati n g s of th e m etri c seri es of tyres pri m ari l y
i n ten d ed for tru cks an d bu ses.
I t i s appl i cabl e to bi as-bel ted , d i ag on al an d rad i al tyres for tru cks an d bu ses, m ou n ted on 5
15

° tapered

° tapered

ri m s an d on

h owever,

appropri ate

(drop-cen tre) ri m s.

I t i s al so appl i cabl e to d i fferen t con cepts an d types of tyres an d ri m s;
ri m /secti on rati os

in

th ese cases,

K , K , coeffi ci en ts K , K , CR an d con stru cti on cod es h ave been ad d ed to Tabl es 3, 4 an d 5.
1

4

2

3

I SO 4209-2 d eal s wi th req u i rem en ts for ri m s.

2

Norm ati ve referen ce

Th e fol l owi n g n orm ati ve docu m en t con tai n s provi si on s wh i ch , th rou g h referen ce i n th i s text, con sti tu te provi si on s of
th i s part of I SO 4209. For d ated referen ces, su bseq u en t am en d m en ts to, or revi si on s of, an y of th ese pu bl i cati on s
do n ot appl y. H owever, parti es to ag reem en ts based on th i s part of I SO 420 9 are en cou rag ed to i n vesti g ate th e
possi bi l i ty of appl yi n g th e m ost recen t edi ti on of th e n orm ati ve d ocu m en t i n d i cated bel ow. For u n d ated referen ces,
th e l atest ed i ti on of th e n orm ati ve d ocu m en t referred to appl i es. M em bers of I SO an d I EC m ai n tai n reg i sters of
cu rren tl y val i d I n tern ati on al Stan d ards.

I SO 4223-1 :

3

—1  ,

Definitions of some terms used in the tyre industry

—

Part 1 : Pneumatic tyres.

Term s an d defi n i ti on s

For th e pu rposes of th i s part of I SO 4209, th e term s an d defi n i ti on s g i ven i n I SO 4223-1 appl y.

4

4. 1

Tyre d esi g n ati on

Con ten t

Th e d esi g n ati on of th e tyre sh al l be sh own on i ts si d ewal l an d sh al l i n cl u d e th e fol l owi n g m arki n g s, to be sh own
cl ose to each oth er:

¾
¾
1

si ze an d con stru cti on (see 4. 2) ;

servi ce con di ti on ch aracteri sti cs (see 4. 3) .

To be pu bl i sh ed . (Revi si on of I SO 4223-1 : 1 989)

© I SO 1 002

– Al l

ri g hts rsedevre

1


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

4. 2

Si ze an d con stru cti on

4. 2.1

M arki n g

Th e si ze an d con stru cti on ch aracteri sti cs sh al l be i n d i cated as fol l ows:

4. 2. 2

N om i n al secti on wi d th

Th e n om i n al secti on wi dth sh al l be expressed i n m i l l i m etres.

For tyres fi tted to 5

4. 2.3

° taper ri m s an d

for tyres fi tted to 1 5

° taper ri m s,

th e n om i n al tyre secti on wi dth sh al l en d i n 5.

N om i n al aspect rati o

Th e n om i n al aspect rati o sh al l be expressed as a percen tag e an d sh al l be a m u l ti pl e of 5.

4. 2. 4

Tyre con stru cti on cod e

Th e tyre con stru cti on cod e sh al l be as fol l ows:

B

for bi as-bel ted con stru cti on ;

D,

R

N OTE

4. 2. 5

or

–,

for d i ag on al /bi as con stru cti on ;

for rad i al con stru cti on .

Oth er cod es wi l l be establ i sh ed for n ew tyre concepts (con stru cti on s) .

N om i n al ri m d i am eter

Th e n om i n al ri m d i am eter for 5

° tapered

bead seat ri m s an d for 1 5

° tapered

bead seat (d rop-cen tre) ri m s sh al l be

expressed by a cod e (see Tabl e 1 for cod e correl ati on ) .

N OTE

15

° tapered ri m s are to be u sed onl y for tyres wi th

l oad i n d ex 1 22 an d l arger.

H owever, i t sh al l be expressed i n m i l l i m etres for n ew an d fu tu re con cepts wh ere th e m ou n ti n g of exi sti n g tyres on
n ew con cept ri m s or of n ew con cept tyres on exi sti n g ri m s wou l d be i n com pati bl e.

4. 3

4. 3.1

Servi ce con d i ti on ch aracteri sti cs

M arki n g

Th e ch aracteri sti cs sh al l be i n d i cated as fol l ows:

2

© I SO 1 002

– Al l

ri g hts rsedevre


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

4. 3. 2

Load i n d ex

The load index is a numerical code associated with the maximum load a tyre can carry at the speed indicated by its
speed symbol under the service conditions specified by the tyre manufacturer. See Table 6.
4. 3. 3

Speed sym bol

The speed symbol indicates the speed at which the tyre can carry the load corresponding to its load index under
the service conditions specified by the tyre manufacturer. See Table 7.
4. 4
4. 4. 1

4. 4. 2

4. 4. 3

4. 5

Oth er servi ce ch aracteri sti cs

In the case of tubeless tyres, the marking TUBELESS shall be shown on the tyre.
In the case of a preferred direction of rotation of the tyre, an arrow shall be used to indicate that direction.
In the case of special tread tyres (see Table 3), the symbol ET shall be shown on the tyre.
“

”

“

”

Exam pl e

A tyre having
a) a size and construction of:
¾ nominal section width 275 mm,
¾ nominal aspect ratio 70 %,

¾ radial construction,
¾ nominal rim diameter code 22.5;
b) service condition characteristics of:
¾ single load 2 500 kg,
¾ dual load 2 300 kg,
¾ reference speed 1 30 km/h;
c) other service characteristics:
ắ tubeless,
ắ special tread;
shall be marked:

â ISO 1 002 All rights rsedevre
–

3


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

ISO 4209-1 :2001 (E)

5

Tyre dimensions

5.1

Calculation of "design" tyre dimensions

5.1 .1

Coefficients

For th e ch oi ce

of coeffi ci en ts

K1

(th eoreti cal

ri m /secti on

K2

rati o) ,

an d

K4

(m easu ri n g

ri m /secti on

rati o) ,

see

Tabl es 3 an d 4.

5.1 .2
Th e

Theoretical rim width, R th
th eoreti cal

ri m

ri m /secti on rati o,

R th

5.1 .3

=

wi d th ,

R th ,

is

equ al

to

th e

prod u ct

of

th e

n om i n al

secti on

wi d th ,

SN ,

an d

th e

th eoreti cal

K1 :

K1 SN

Measuring rim width, R m

Th e m easu ri n g ri m wi d th ,

Rm

=

Rm ,

an d th e coeffi ci en t,

K4 :

tran sferred from th e th eoreti cal ri m ,

R th

i s eq u al to th e prod u ct of th e n om i n al secti on wi d th ,

SN ,

K4 SN

rou n d ed to th e n earest stan d ard i zed ri m wi dth (see Tabl e 2) .

5.1 .4

Design tyre section width, S

Th e d esi g n tyre secti on wi d th ,
m easu ri n g ri m ,

S

=

SN

+

S,

i s th e n om i n al secti on wi dth ,

SN ,

to th e

Rm :

K2 ( R m

– R th )

rou n d ed to th e n earest wh ol e n u m ber.

5.1 .5

Design tyre section height, H

Th e d esi g n tyre secti on h ei g h t,
rati o,

H/S ( H/S

H

=

SN

H,

i s eq u al to th e prod u ct of th e n om i n al secti on wi d th ,

SN ,

an d th e n om i n al aspect

expressed as a percen tag e) :

H/ S
1 00

rou n d ed to th e n earest wh ol e n u m ber.

5.1 .6

Design tyre overall diameter, D o

Th e d esi g n tyre overal l di am eter,
h ei g h t,

Do

Do ,

i s th e su m of th e n om i n al ri m d i am eter,

=

Dr

pl u s twi ce th e d esi g n tyre secti on

+ 2H

For tyres u si ng a n om i n al ri m d i am eter code, see Tabl e 1 for th e val u e of

4

D r,

H:

Dr

to be u sed.


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

ISO 4209-1 :2001 (E)

5.1 .7

Values

Th e rel evan t d i m en si on s (m easu ri n g ri m wi dth , d esi g n secti on wi d th an d d es i g n secti on h ei g h t) are sh own i n
an n exes A an d B. For tyres of a g i ven seri es, wi th a n om i n al tyre secti on over 205, i t i s recom m en d ed th at th e y be
i n i n crem en ts l arg er th an 1 0.

5.2

Calculation of "maximum overall tyre dimensions in service"

Th ese cal cu l ati on s are for u se b y veh i cl e m an u factu rers i n d esi g n i n g for tyre cl earan ces.

5.2.1

Maximum overall width in service,

Th e m axim u m overal l wi d th i n servi ce,
appropri ate coeffi ci en t,

W

m ax

=

a (see Tabl e 3 ) :

W

W

m ax

m ax,

i s eq u al to th e prod u ct of th e desi g n tyre secti on wi d th ,

S,

an d th e

Sa

I t i n cl u d es protecti ve ri bs, l etteri n g , em bel l i sh m en ts, m an u factu ri n g tol eran ces an d g rowth d u e to servi ce.

5.2.2

Maximum overall diameter in service,

Th e m axim u m overal l d i am eter i n servi ce,

D

th e prod u ct of th e d esi g n tyre secti on h ei g h t,

D

o, m ax

=

D

r

+ 2

D

o, m ax

i s eq u al to th e n om i n al ri m d i am eter, D (see Tabl e 1 ) , pl u s twi ce
H, an d th e appropri ate coeffi ci en t, b (see Tabl e 3) :

o , m ax,

r

Hb

I t i n cl u d es m an u factu ri n g tol eran ces, th e d i fferen t types of tread pattern s an d g rowth d u e to servi ce.

5.3

Minimum dual spacing (MDS)

5.3.1

Th e m i n i m u m du al spaci n g i s a g u i d el i n e val u e eq u al to th e prod u ct of th e d esi g n tyre secti on wi dth ,

th e appropri ate coeffi ci en t,

M DS =

K

3

S, an d

(see Tabl e 4) :

SK

3

I t i s referred to a tyre l oad accord i n g to th e l oad i n dex, i n du al appl i cati on sh own i n th e servi ce ch aracteri sti cs on
th e tyre at an i n fl ati on pressu re appl i cabl e for n orm al h i g h way servi ce.

5.3.2

Th e desi g n tyre secti on wi dth ,

S, wi l l ch an g e 2, 5 m m for each 0. 25 ch an g e i n ri m wi d th cod e. Th e m i n i m um

du al spaci n g sh al l be adj u sted accord i n g l y.

© I SO 1 002

– Al l

ri g hts rsedevre

5


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

Tabl e 1

—

N om i n al ri m d i am eter cod es

Cod e

Tabl e 2

N om i n al rim

—

Ri m wi d th cod es

Cod e

Ri m wi d th

d i am eter
5

° tapered
ri m s

15

° tapered
ri m s

6

D

r

(d rop-cen tre)

5

° tapered
ri m s

mm

15

° tapered

mm

(d rop-cen tre)
ri m s

10

—

254

3. 00

—

76

12

—

305

3. 50

—

89

13

—

330

4. 00

—

1 01 , 5

14

—

356

4. 50

—

1 1 4, 5

15

—

381

5. 00

—

1 27

16

—

406

—

5. 25

1 33, 5

17

—

432

5. 50

—

1 39, 5

—

1 7. 5

445

6. 00

6. 00

1 52, 5

18

—

457

6. 50

—

1 65

—

1 9. 5

495

—

6. 75

1 71 , 5

20

—

508

7. 00

—

1 78

—

20. 5

521

7. 50

7. 50

1 90, 5

22

—

559

8. 00

—

203

—

22. 5

572

—

8. 25

209, 5

24

—

61 0

8. 50

—

21 6

—

24. 5

622

9. 00

9. 00

228, 5

9. 50

—

241 , 5

—

9. 75

247, 5

1 0. 00

—

254

1 0. 50

1 0. 50

266, 5

1 1 . 00

—

279. 5

—

1 1 . 75

298, 5

1 2. 00

—

305

—

1 2. 25

31 1

1 3. 00

1 3. 00

330

1 4. 00

1 4. 00

355, 5

1 5. 00

1 5. 00

381

—

1 6. 00

406, 5

—

1 7. 00

432

—

1 8. 00

457

© I SO 1 002

– Al l

ri g hts rsedevre


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

—

Tabl e 3

Coeffi ci en ts

Stru ctu re

K2 , b , a for cal cu l ati on of tyre d i m en si on s

Tyre con stru cti on

Coeffi ci en ts

cod e

K2

b

a

a

Bi as-bel ted

B

0, 4

1 , 07

1 , 08

Di ag onal

D

0, 4

1 , 07

1 , 08

Rad i al

R

0, 4

1 , 04

1 , 05

a

For speci al tread tyres (see 4. 4. 3):

Bi as-belted:
Di ag on al :
Radi al :

N OTE

b

b

b

= 1 , 09

= 1 , 09

= 1 , 06

Oth er factors m ay be establ ish ed for n ew tyre con cepts (constructi on s) .

Tabl e 4

—

Coeffi ci en ts

K1 , K3 , K4 for cal cu l ati on of tyre d i m en si on s
Nom i n al

Th eoreti cal

Mi n i mu m

M easu ri n g

con stru ction

aspect

ri m /section

d u al

ri m /section

cod e

rati o

rati o

spaci ng

rati o

H/S

K1

K3

K4

1 00 to 75

0, 70

1 ,1 5

0, 70

70 and 65

0, 70

1 ,1 5

0, 75

60

0, 70

1 ,1 5

0, 75

55

0, 70

1 ,1 5

0, 80

0, 70

1 ,1 5

0, 80

90 to 65

0, 75

1 , 1 25

0, 75

60

0, 80

1 , 1 25

0, 80

55

0, 80

1 , 1 25

0, 80

50

0, 80

—

0, 80

0, 85

—

0, 85

Tyre

Type of ri m

5

° tapered

B, D, R

50

15

° tapered

(d rop-cen tre)

45
a

a

a

For H /S l ower th an 50 or 45 respecti vel y, fu rth er coeffi ci en ts wi l l be establi sh ed.

N OTE

5. 4

NOTE

Oth er factors m ay be establ ish ed for n ew tyre con cepts (constructi on s) .

Approved ri m wi d th s

Th e ran g e of approved ri m wi d th s, i n m i l l i m etres, i s d eterm i n ed, for each n om i n al secti on wi d th , by m u l ti pl yi n g th e
n om i n al secti on wi dth ,

¾
¾

SN ,

m i n im u m rim wi d th :

m axim u m rim wi d th :

by th e coeffi ci en ts,

CR ,
CR ,

min

´
´

m ax

CR ,

presen ted i n Tabl e 5, i . e.

SN ;
SN .

Th e val u es obtai n ed sh al l be rou n d ed to th e n earest stan dard i zed ri m wi d th i n Tabl e 2.

© I SO 1 002

– Al l

ri g hts rsedevre

7


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

Tabl e 5
Type of ri m

—

Coeffi ci en ts for cal cu l ati on of ri m wi d th s
Nom i n al aspect
rati o

Coeffi ci en ts for cal cu lati on of
approved ri m wi d th

H/S

5

m ax.

1 00 to 75

0, 65

0, 80

70

0, 675

0, 80

65

0, 70

0, 80

60

0, 725

0, 825

55

0, 75

0, 825

50 b

0, 75

0, 825

90 to 70

0, 70

0, 80

60 an d 65

0, 75

0, 825

55

0, 775

0, 825

50

0, 80

0, 85

0, 80

0, 85

° tapered

45
a

CR

min.

° tapered

15

a

b

Oth er coeffici ents m ay be speci fi ed i n rel ati on to speci al servi ces by ag reem en t

am ong tyre, rim , wh eel an d m otor veh i cl e m an u factu rers.
b

For

H/S l ower th an

50

an d

45

respecti vel y,

fu rth er

coeffi ci en ts

wi l l

be

establ ish ed.

6

Tyre d i m en si on tables

Exam pl es of a few si zes i n a tyre d i m en si on s tabl e are g i ven i n An n ex C. Th e fi g u res sh own i n th e col u m n h ead ed
"Ri m " are cod es rel ated to m easu ri n g ri m wi d th ,

7

R m (see Tabl e 2 for code correl ati on ) .

Meth od of m easu rem en t of tyre d i m en si on s

Before m easu ri n g , tyres sh al l be m ou n ted on th e m easu ri n g ri m , i n fl ated to th e recom m en ded pressu re, an d
al l owed to stan d for a m i n i m um of 24 h at n orm al room tem peratu re, after wh i ch th e i n fl ati on pressu re sh al l be
readj u sted to th e ori g i n al val u e.

8

8. 1

Servi ce ch aracteri sti cs

Tyre l oad -carryi n g capaci ty

Load i n dexes are sh own i n Tabl e 6.

8. 2

Speed sym bol

Speed sym bol s are sh own i n Tabl e 7.

8

© I SO 1 002

– Al l

ri g hts rsedevre


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

8. 3

Load -carryi n g capaci ty at vari ou s speed s

Wh en th e tyre i s fi tted on a veh i cl e wi th a m axim u m speed capabi l i ty d i fferen t from th e tyre referen ce speed ,
vari ati on s of l oad are g ran ted i n rel ati on to th e l oad correspon d i n g to th e l oad i n d ex (see Tabl es 8 an d 9) . To obtai n
i m proved operati n g perform an ce u n der th ese con di ti on s, i n fl ati on pressu res h i g h er th an th e basi c pressu re m ay be

req u i red .

Tabl e 6
Load

TLCC

In d ex
(LI )

—

Load

Correl ati on between l oad i n d ex an d tyre l oad -carryi n g capaci ty (TLCC)
TLCC

I n d ex
kg

Load

TLCC

I n d ex

(LI )

kg

Load

TLCC

I n d ex

(LI )

kg

(LI )

Load

TLCC

I n d ex
kg

(LI )

Load

TLCC

I n d ex
kg

(LI )

Load

TLCC

I n d ex
kg

(LI )

kg

0

46

40

1 40

80

450

1 20

1 400

1 60

4 500

200

1 4 000

240

45 000

1

46, 2

41

1 45

81

462

1 21

1 450

1 61

4 625

201

1 4 500

241

46 250

2

47, 5

42

1 50

82

475

1 22

1 500

1 62

4 750

202

1 5 000

242

47 750

3

48, 7

43

1 55

83

487

1 23

1 550

1 63

4 875

203

1 5 500

243

48 750

4

50

44

1 60

84

500

1 24

1 600

1 64

5 000

204

1 6 000

244

50 000

5

51 , 5

45

1 65

85

51 5

1 25

1 650

1 65

5 1 50

205

1 6 500

245

51 500

6

53

46

1 70

86

530

1 26

1 700

1 66

5 300

206

1 7 000

246

53 000

7

54, 5

47

1 75

87

545

1 27

1 750

1 67

5 450

207

1 7 500

247

54 500

8

56

48

1 80

88

560

1 28

1 800

1 68

5 600

208

1 8 000

248

56 000

9

58

49

1 85

89

580

1 29

1 850

1 69

5 800

209

1 8 500

249

58 000

10

60

50

1 90

90

600

1 30

1 900

1 70

6 000

21 0

1 9 000

250

60 000

11

61 , 5

51

1 95

91

61 5

1 31

1 950

1 71

6 1 50

21 1

1 9 500

251

61 500

12

63

52

200

92

630

1 32

2 000

1 72

6 300

21 2

20 000

252

63 000

13

65

53

206

93

650

1 33

2 060

1 73

6 500

21 3

20 600

253

65 000

14

67

54

21 2

94

670

1 34

2 1 20

1 74

6 700

21 4

21 200

254

67 000

15

69

55

21 8

95

690

1 35

2 1 80

1 75

6 900

21 5

21 800

255

69 000

16

71

56

224

96

71 0

1 36

2 240

1 76

7 1 00

21 6

22 400

256

71 000

17

73

57

230

97

730

1 37

2 300

1 77

7 300

21 7

23 000

257

73 000

18

75

58

236

98

750

1 38

2 360

1 78

7 500

21 8

23 600

258

75 000

19

77, 5

59

243

99

775

1 39

2 430

1 79

7 750

21 9

24 300

259

77 500

20

80

60

250

1 00

800

1 40

2 500

1 80

8 000

220

25 000

260

80 000

21

82, 5

61

257

1 01

825

1 41

2 575

1 81

8 250

221

25 750

261

82 500

22

85

62

265

1 02

850

1 42

2 650

1 82

8 500

222

26 500

262

85 000

23

87, 5

63

272

1 03

875

1 43

2 725

1 83

8 750

223

27 250

263

87 500

24

90

64

280

1 04

900

1 44

2 800

1 84

9 000

224

28 000

264

90 000

25

92, 5

65

290

1 05

925

1 45

2 900

1 85

9 250

225

29 000

265

92 500

26

95

66

300

1 06

950

1 46

3 000

1 86

9 500

226

30 000

266

95 000

27

97, 5

67

307

1 07

975

1 47

3 075

1 87

9 750

227

30 750

267

97 500

28

1 00

68

31 5

1 08

1 000

1 48

3 1 50

1 88

1 0 000

228

31 500

268

1 00 000

29

1 03

69

325

1 09

1 030

1 49

3 250

1 89

1 0 300

229

32 500

269

1 03 000

30

1 06

70

335

110

1 060

1 50

3 350

1 90

1 0 600

230

33 500

270

1 06 000

31

1 09

71

345

111

1 090

1 51

3 450

1 91

1 0 900

231

34 500

271

1 09 000

32

112

72

355

112

1 1 20

1 52

3 550

1 92

1 1 200

232

35 500

272

1 1 2 000

33

115

73

365

113

1 1 50

1 53

3 650

1 93

1 1 500

233

36 500

273

1 1 5 000

34

118

74

375

114

1 1 80

1 54

3 750

1 94

1 1 800

234

37 500

274

1 1 8 000

35

1 21

75

387

115

1 21 5

1 55

3 875

1 95

1 2 1 50

235

38 750

275

1 21 000

36

1 25

76

400

116

1 250

1 56

4 000

1 96

1 2 500

236

40 000

276

1 25 000

37

1 28

77

41 2

117

1 285

1 57

4 1 25

1 97

1 2 850

237

41 250

277

1 28 500

38

1 32

78

425

118

1 320

1 58

4 250

1 98

1 3 200

238

42 500

278

1 32 000

39

1 36

79

437

119

1 360

1 59

4 375

1 99

1 3 600

239

43 750

279

1 36 000

© I SO 1 002

– Al l

ri g hts rsedevre

9

Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

Tabl e 7

—

Correl ati on between speed symbol
an d speed categ ory

Speed sym bol

Speed categ ory

km /h

Tabl e 8

—

B

50

C

60

D

65

E

70

F

80

G

90

J

1 00

K

110

L

1 20

M

1 30

N

1 40

P

1 50

Q

1 60

R

1 70

S

1 80

T

1 90

H

21 0

Load -carryi n g capaci ti es at vari ou s speed s

Tyres wi th l oad i n d ex (si n g l e)

u 1 21

—

an d speed sym bol J an d above

Load , %, for speed sym bol

Speed

km /h

J

K

L

M

Stati c

250

250

21 0

10

1 80

1 80

1 75

15

1 65

1 65

1 60

See

See

See

See

See

See

See

See

30

1 25

1 25

1 35

Col u m n

col u m n

col u m n

col u m n

col u m n

col u m n

col u m n

col u m n

50

112

112

1 20

L

L

L

L

L

L

L

L

70

1 07

1 07

1 1 2, 5

85

1 03

1 03

1 08, 5

1 00

1 00

1 00

1 05

110

96

1 00

1 02, 5

1 20

88

93

1 00

1 00
1 00

1 00
1 00

1 00
1 00

1 00

1 30

95

1 00

1 40

90

95

N

P

Q

1 50

1 60

—

R

S

T

—
—

1 70

—

H

—
—

1 80

—
—

1 90

—

—

21 0
N OTE 1

Th e i n fl ati on pressu re sh al l be i ncreased for l oad adj u stm en ts above 1 25 % or for speeds above 1 60 km /h i n consu ltati on wi th

N OTE 2

Load ad j u stm en ts are val i d for use on i m proved su rface on l y.

N OTE 3

Con su l t ri m an d wh eel m an ufactu rers for con fi rm ati on of th e stren gth of th e rim /wh eel for th e i n ten ded servi ce.

N OTE 4

For 70 km /h an d above "speed " m eans th e speed capabi l i ty of th e veh i cl e (m axi m um speed u n der fu l l y l ad en con d i ti on s) . For

th e tyre m an u factu rer.

65 km /h an d bel ow, "speed" m ean s th e operati n g speed of th e veh icl e.

10

© I SO 1 002

– Al l

ri g hts rsedevre

Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

Tabl e 9

—

Load -carryi n g capaci ti es at vari ou s speed s

Tyres wi th l oad i n d ex (si n g l e)

—

W 1 22, speed sym bol s F to M

Load , %, for speed sym bol

Speed

km /h

F

Stati c

250

10

1 80

15

1 65

30

1 25

50

112

65

1 07, 5

1 08, 5

1 08, 5

80

1 00

1 04

1 04

90

94

1 00

1 02

1 00

85

95

1 00

87

96

1 00

1 00

1 00

—

88

93

1 00

1 00

—

—

—

1 00

110

—

1 20
1 30

G

J

K

L

M

See col u m n F

See col u m n J

N OTE 1

Th e i n fl ati on pressu re sh al l be i ncreased for l oad ad j u stm en ts above 1 25 % i n con su ltati on wi th th e tyre m an u factu rer.

N OTE 2

Load adj u stm en ts are val i d for use on im proved su rface on l y.

N OTE 3

Con su l t rim an d wh eel m an ufactu rers for con fi rm ati on of th e stren gth of th e rim /wh eel for th e i n ten ded servi ce.

N OTE 4

For 70 km /h an d above "speed" m eans th e speed capabil i ty of th e veh i cl e (m axi m um speed u n der fu l l y l ad en con di ti on s) . For
65 km /h an d bel ow, "speed" m ean s th e operati n g speed of th e veh icl e.

© I SO 1 002

– Al l

ri g hts rsedevre

11


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

An n ex A
(i n form ati ve)

G u i d el i n e val u es for m etri c seri es, 5 ° ri m s

Th ese val u es wi l l serve as a g u i del i n e for th e d esi g n of tyre d i m en si on s, m etri c seri es, m ou n ted on 5

°

tapered

d rop-cen tre ri m s (cod e-d esi g n ated) wi th n om i n al ri m di am eters u p to code 1 6 i n cl u si ve. For tyres m ou n ted on 1 5

°

tapered drop-cen tre ri m s (cod e-d esi g n ated) , see an n ex B. For tyres m ou n ted on d i fferen t types of ri m s (m i l l i m etred esi g n ated ) , oth er an n exes wi l l be establ i sh ed.

Tabl e A. 1

—

Di m en si on al g u i d el i n es for m etri c

12

to

“ 75 ”

seri es tyres on

5 ° tapered ri m s

Tyre d esi g n di m ensi on s, m m

N om i n al

Measu ri n g

secti on

ri m wi d th

Desi g n

wi d th

cod e

secti on wid th

SN

Rm

S

mm

a

“ 1 00 ”

Desi g n secti on h ei gh t
Nom i n al aspect rati os,

a

,

H

Approved ri m
wi d th cod es

H/S

1 00

95

90

85

80

75

min.

m ax.

1 25

3. 50

1 26

1 25

119

113

1 06

1 00

94

3

4

1 35

3. 50

1 33

1 35

1 28

1 22

115

1 08

1 01

3. 5

4. 5

1 45

4. 00

1 45

1 45

1 38

1 31

1 23

116

1 09

3. 5

4. 5

1 55

4. 50

1 57

1 55

1 47

1 40

1 32

1 24

116

4

5

1 65

4. 50

1 65

1 65

1 57

1 49

1 40

1 32

1 24

4

5

1 75

5. 00

1 77

1 75

1 66

1 58

1 49

1 40

1 31

4. 5

5. 5

1 85

5. 00

1 84

1 85

1 76

1 67

1 57

1 48

1 39

4. 5

6

1 95

5. 50

1 96

1 95

1 85

1 76

1 66

1 56

1 46

5

6

205

5. 50

203

205

1 95

1 85

1 74

1 64

1 54

5

6. 5

21 5

6. 00

21 6

21 5

204

1 94

1 83

1 72

1 61

5. 5

7

225

6. 00

223

225

21 4

203

1 91

1 80

1 69

6

7

235

6. 50

235

235

223

21 2

200

1 88

1 76

6

7. 5

245

7. 00

248

245

233

221

208

1 96

1 84

6. 5

7. 5

255

7. 00

255

255

242

230

21 7

204

1 91

6. 5

8

265

7. 50

2. 67

265

252

239

225

21 2

1 99

7

8. 5

275

7. 50

274

275

261

248

234

220

206

7

8. 5

285

8. 00

286

285

271

257

242

228

21 4

7. 5

9

295

8. 00

294

295

280

266

251

236

221

7. 5

9. 5

305

8. 50

306

305

290

275

259

244

229

8

9. 5

31 5

8. 50

31 3

31 5

299

284

268

252

236

8

10

325

9. 00

325

325

309

293

276

260

244

8. 5

10

335

9. 00

333

335

31 8

302

285

268

251

8. 5

1 0. 5

345

9. 50

345

345

328

31 1

293

276

259

9

11

355

1 0. 00

357

355

337

320

302

284

266

9

11

365

1 0. 00

364

365

347

329

31 0

292

274

9. 5

1 1 .5

Th e fi g u res are based on n orm al tread pattern tyres.

© I SO 1 002

– Al l

ri g hts rsedevre


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

Tabl e A. 2
N om i n al

Di m en si on al g u i d el i n es for m etri c

Th eoreti c.

secti on

ri m wi d th

wi d th

S

—

R

N

M easu ri n g

Desi g n

ri m wi d th

secti on

cod e

wi d th

R

th

m

“ 70 ” , “ 65 ”

an d

“ 60 ”

Desi g n secti on
h ei g h t

S

a

,

H

Approved ri m wid th cod es

mm

min.

m ax.

N om i n al aspect rati os,

Nom i n al aspect rati os,

N om i n al aspect

HS

HS

/

K

mm

a

1

= 0 , 70

K

4

seri es tyres on 5 ° tapered ri m s

= 0 , 75

mm

70

65

rati os,

/

60

70

65

60

70 an d 65

HS
/

60

1 65

4, 55

5, 0

1 70

1 1 6

1 07

99

4. 5

4. 5

4. 5

5

5. 5

1 75

4, 82

5, 0

1 77

1 23

1 1 4

1 05

4. 5

5

5

5. 5

5. 5

1 85

5, 1 0

5, 5

1 89

1 30

1 20

1 1 1

5

5

5. 5

6

6

1 95

5, 37

6, 0

201

1 37

1 27

1 1 7

5

5. 5

5. 5

6

6. 5

205

5, 65

6, 0

209

1 44

1 33

1 23

5. 5

5. 5

6

6. 5

6. 5

21 5

5, 93

6, 5

221

1 51

1 40

1 29

5. 5

6

6

7

7

225

6, 20

6, 5

228

1 58

1 46

1 35

6

6

6. 5

7

7. 5

235

6 , 48

7, 0

240

1 65

1 53

1 41

6

6. 5

6. 5

7. 5

7. 5

245

6 , 75

7, 0

2 48

1 72

1 59

1 47

6. 5

7

7

7. 5

8

255

7, 03

7, 5

260

1 79

1 66

1 53

7

7

7. 5

8

8. 5

265

7, 30

8, 0

272

1 86

1 72

1 59

7

7. 5

7. 5

8. 5

8. 5

275

7, 58

8, 0

2 79

1 93

1 79

1 65

7. 5

7. 5

8

8. 5

9

285

7, 85

8, 5

292

200

1 85

1 71

7. 5

8

8

9

9. 5

295

8, 1 3

8, 5

299

207

1 92

1 77

8

8

8. 5

9. 5

9. 5

305

8 , 41

9, 0

31 1

21 4

1 98

1 83

8

8. 5

8. 5

9. 5

1 0

31 5

8, 68

9, 5

323

221

205

1 89

8. 5

8. 5

9

1 0

1 0

325

8, 96

9, 5

331

228

21 1

1 95

8. 5

9

9. 5

1 0

1 0. 5

335

9, 23

1 0, 0

3 43

235

21 8

201

9

9

9. 5

1 0. 5

1 1

3 45

9, 51

1 0, 0

350

242

224

207

9

9. 5

1 0

1 1

1 1

355

9 , 78

1 0, 5

362

249

231

21 3

9. 5

1 0

1 0

1 1

1 1 .5

365

1 0, 06

1 1 ,0

3 75

256

237

21 9

9. 5

1 0

1 0. 5

1 1 .5

1 2

Th e fi g u re s are bas e d o n n o rm al tread pattern tyre s .

© I SO 1 002

–

Al l ri g h ts rse d evre

13


Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 1 3: 39 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI

I SO 4209-1 : 2001 (E)

Tabl e A. 3

—

Di m en si on al g u i d el i n es for m etri c seri es

N om i n al

Th eoreti cal

Measu ri n g ri m

Desi g n

secti on wid th

ri m wi d th

wi d th cod e

secti on wid th

S

N

mm

a

14

R

K

1

R

th

= 0 , 70

K

4

m

“ 55 ”

an d

“ 50 ”

seri es tyres on 5 ° tapered ri m s

Desi g n secti on h ei gh t

a

,

H
Approved ri m wid th cod es

S

mm

N om i n al aspect rati os,

HS
/

= 0, 80

mm

55

50

min.

m ax.

1 65

4, 55

5, 0

1 70

91

83

5

5. 5

1 75

4, 82

5, 5

1 82

96

88

5

5. 5

1 85

5, 1 0

6, 0

1 94

1 02

93

5. 5

6

1 95

5, 37

6, 0

201

1 07

98

6

6. 5

205

5, 65

6, 5

21 4

1 1 3

1 03

6

6. 5

21 5

5, 93

7, 0

226

1 1 8

1 08

6. 5

7

225

6, 20

7, 0

233

1 24

1 1 3

6. 5

7. 5

235

6, 48

7, 5

245

1 29

1 1 8

7

7. 5

245

6, 75

7, 5

253

1 35

1 23

7

8

255

7, 0 3

8, 0

265

1 40

1 28

7. 5

8. 5

265

7, 3 0

8, 5

277

1 46

1 33

8

8. 5

275

7, 5 8

8, 5

284

1 51

1 38

8

9

285

7, 85

9, 0

297

1 57

1 43

8. 5

9. 5

295

8, 1 3

9, 5

309

1 62

1 48

8. 5

9. 5

305

8, 41

9, 5

31 6

1 68

1 53

9

1 0

31 5

8, 68

1 0, 0

328

1 73

1 58

9. 5

1 0

325

8, 96

1 0, 0

336

1 79

1 63

9. 5

1 0. 5

335

9, 23

1 0, 5

348

1 84

1 68

1 0

1 1

3 45

9, 51

1 1 ,0

360

1 90

1 73

1 0

1 1

355

9, 78

1 1 ,0

367

1 95

1 78

1 0. 5

1 1 .5

365

1 0, 06

1 1 ,5

380

201

1 83

1 1

1 2

Th e fi g u re s are bas ed o n n o rm al tre ad pattern tyres .

© I SO 1 002

–

Al l ri g h ts rse d e vre