Bsi bs au 050 1 6 3a 1995 (1999) iso 6054 1 1994

BRITISH STANDARD AUTOMOBILE SERIES BS AU 50 1 6 3a 1995 ISO 6054 1 1994 Tyres and wheels — Part 1 Tyres — Section 6 Motorcycle tyres — Subsection 6 3a Specification for designations, dimensions and lo[.]

ISO 6054-1:

1994

ICS 8 1 0.1

This British Stan ard,ha ing

b en pre ared u der the

directionof the Engine ring

SectorBo rd, was publshed

u derthe authority of the

Stan ards Bo rd an

comesintoefect on

1 Decemb r1 9

© BSI 0 -1 9

The folowing BSI references

relate to the work on this

stan ard:

Commite reference AUE/4

Draft for comment 9 /82 8 DC

The prep ration of this British Stand rd was entrusted to Tech ical

Commit e AUE/4, Ty res and whe ls for motor v ehicles, upon which the

folowing bodies were represented:

Ag ricultural Eng ine r ’ Association

Automobie Association

British Industrial Truck Association

British Pres ure Gaug e Man facturer ’ Association

British Rub er Man facturer ’ Association

Confederation of Pas eng er Transport UK

Dep rtment of Transport

Freig ht Transport Association

Institute of Roa Transport Eng ine r ( Inc)

Motor Cy cle Industry ’s Association of Great Britain Ltd

Motor Industry Resear h Association

National Ty re Distributor ’ Association

Retrea Man facturer ’ Association

Roa Haulag e Association Ltd

Society of Motor Man facturer and Tra er Ltd

Am endm ents is ued sinc publ cation

Pag e

Ta le 3 — Ty re dimensions for nominal rim diameter

Ta le 4 — Ty re dimensions for nominal rim

diameter codes 8, 9, 10 and 1 — Desig n and in-serv ice 3

Ta le 5 — Ma imum ty re loa rating s and inflation pres ures —

Ta le 6 — Ma imum ty re loa rating s and inflation pres ures —

Ta le 7 — Per entag e ov erloa at other ma imum spe ds 5

National foreword

This Subsection of this Part of BS AU5 has be n prep red b Tech ical

Commit e AUE/ 4 and is identical to ISO6 5 -1:19 4 Motor cycle tyr es a nd r ims

(cod e-d esigna ted s r ie ) — Dia meter cod es4 to12 — Pa r t 1: Tyr es, publshed b

the International Org anization for Stand rdization ( ISO)

BS AU 5 -1.6.3 super edes BS AU5 -1.6.3:19 1 which is withdrawn

Other Parts ofthe Stand rd are:

— Pa r t 2: Whe ls a nd r ims;

— Pa r t 3: Va lve ;

— Pa r t 4: R im pr ofil es a nd d imensions

Cros -referenc

The Tech ical Commit e has rev iewed the prov isions of ISO42 3-1, to which

normativ e reference is ma e in the text, and has decided that they are ac epta le

for use in conju ction with this stand rd

A British Stand rd do s not purport to include al the neces ary prov isions of a

contract User of British Stand rds are responsible for their cor ect a pl cation

Com pl anc with a British Standard do s not of itselfc nfer im munity

f om leg al obl g ations

Summ ary of pag es

This document comprises a font cov er, an inside f ont cov er, p g es i and i,

p g es1 to 6, an inside b ck cov er and a b ck cov er

This stand rd has be n up ated ( se cop rig ht d te) and ma hav e ha

amendments incorporated.This wi be indicated in the amendment ta le on the

inside f ont cov er

1 Scope

This p rt of ISO6 5 lay s down the desig nation,

dimensions, and loa rating s for an

inch-code-desig nated series of ty res for motor y cles,

fit ed on rims with a nominal diameter

cor esponding to the codes4, 5, 6, 7, 8, 9, 10 and1

ISO6 5 -2 deals with the requirements for rims

NOT 1 The p ralel International Stan ards in the metric

series are ISO5 5 -1[4],ISO5 5 -2[5] an ISO5 5 -3[6]

2 Norm ative ref rence

The folowing stand rd contains prov isions which,

throug h reference in this text, constitute prov isions

of this p rt of ISO6 5 At the time of publcation,

the edition indicated was v al d All stand rds are

subject to rev ision, and p rties to ag re ments b sed

on this p rt of ISO6 5 are encourag ed to

inv estig ate the pos ibi ty of a ply ing the most

recent edition of the stand rd indicated below

Member of IEC and ISO maintain reg ister of

cur ently v al d International Stand rds

ISO 42 3-1:19 9, Definiions o some ter ms us d in

the tyr e ind ustr y — Pa r t 1: Pneuma tic tyr es

3 Definitions

For the purposes of this p rt of ISO6 5 , the

definitions g iv en in ISO42 3-1 a ply

The desig nation of the ty re shal be shown on its

sidewal and shal include the folowing marking s,

to be shown close to each other:

— siz dimension ( se 4.1);

— serv ice des ription ( se 4.2)

4.1 Size dimension

The characteristic shal be indicated as fol ows:

4.1.1 Nominal s ct ion widt h

The nominal section width shal be ex res ed b a

code ( se Ta le 2 for code cor elations)

4.1.2 Nominal rim d iamet er

The nominal rim diameter shal be ex res ed b a

code ( se Ta le 1 for code cor elations)

4.2 Servic description

The characteristic shal be indicated as fol ows:

4.2.1 Load ind ex

The loa index is a n merical code as ociated with

the ma imum loa a ty re can car y at the spe d

indicated b its spe d sy mbol u der serv ice

conditions specified b the ty re man facturer

4.2.2 Spe d symb l

The spe d sy mbol indicates the spe d at which the

ty re can car y a loa cor esponding to its loa index

u der serv ice conditions specified b the ty re

man facturer

5 Tyr dim ensions

5.1 Calculation of “desig n tyre” dim ensions

5.1.1 D esign t yre o eral l d iamet er, D

O

The desig n ty re ov eral diameter is the sum of the

nominal rim diameter, D

r , plus twice the desig n ty re

section heig ht, H:

D

O

= D

r + 2H

For ty res marked with a nominal rim diameter code,

se Ta le 1 for the v alue of D

r

to be used

Ta le 1 — Nominal rim diam eter c de

5.1.2 D esign t y re s ct ion height , H

The desig n ty re section heig ht,H, cor esponds to the

nominal section width, S

N , as shown inTa le 2

Ta le 2 — Se tion heig ht

5.2 Calculation of “m axim um overal tyre

dim ensions in servic ”

These dimensions include protectiv e ribs, let ering ,

embel ishments, manufacturing tolerances, special

trea config uration and g rowth due to serv ice

Co e

Nom inal rim diam ete , D

r

mm

4

5

6

7

8

9

10

1

102

1 7

152

17

20

2 9

25

3 5

Nom inal se tion

width, S , co e

Se tion heig ht, H, for rim co es

4, 5, 6 and 7

mm

8, 9, 1 and 1

mm

2.5

2.7

3.0

3.25

3.5

4.0

4.5

6.0

—

—

7 ,5

—

8

9 ,5

1 2

142

6 ,5

72,5

7 ,5

8

91,5

10

1 9,5

151,5

5.2.1 Max imum o eral l widt h in s r ic , W

ma

The ma imum ov eral width in serv ice is equal to

the product of the desig n ty re section width S and

the co ficient1,0 :

W

ma

= 1,0 S

5.2.2 Max imum o eral l diamet er in

s r ic ,D

O,ma

The ma imum ov eral diameter in serv ice is equal to

the nominal rim diameter, D

r , plus twice the product

of the desig n ty re section heig ht, H, and the

co ficient1,1:

D

O,ma

= D

r

+ 2,2H

5.3 Desig n tyre and overal tyre dim ensions

Ta le 3 andTa le 4 g iv e desig n ty re dimensions and

ov eral ty re dimensions in serv ice for the ty res of

which the desig nation is as indicated in4.1

6 Method ofm easur m ent oftyr

dim ensions

Before measuring , ty res shal be mou ted on the

measuring rim, inflated to the recommended

pres ure, and alowed to stand for a minimum

of24h at normal ro m temperature, after which the

inflation pres ure shal be rea justed to the orig inal

v alue

I rims of other widths are used, the v alues of desig n

ty re section width, S, and ma imum ov eral section

in serv ice, W

ma , shal be chang ed b 4 % of the

diference in rim width

Ta le 3 — Tyre dimensions for nom inal rim diam eter c des4, 5, 6 and 7 —

Desig n and in- servic

Dimensions in mi imetres

Tyr siz

designation

Measuring rim

width

Se tion width Ove al diam ete

Ma im um o e al

se tion width

Ma im um o e al

diam ete

R

m

O

W

ma

D

O ,ma

3.0 - 5

3.0 - 7

27

327

8

291

3 2

3.5 - 4

3.5 - 5

3.0 - 6

3.5 - 7

27

29

324

3 0

9

291

316

3 1

3 7

4.0 - 5

4.0 - 7

326

3 7

1 3

3 6

3 7

Ta le 4 — Tyre dim ensions for nom inal rim diam eter c des8, 9, 10 and 12 —

Desig n and in- servic

Dimensions in mi imetres

Tyr siz

desig nation

Measuring rim

width

Se tion width Ove al diam ete

Ma im um o e al

se tion width

Ma im um o e al

diam ete

R

m

O

W

ma

D

O ,ma

2.5 - 8

2.5 - 9

3 8

3 4

7

3 2

3 8

2.7 - 9

2.7 - 10

3 4

3 9

7

3 9

414

3.0 - 8

3.0 - 10

3.0 - 12

3 2

413

4 4

8

3 8

429

4 0

3.5 - 8

3.5 - 9

3.5 - 10

3.5 - 12

3 6

41

4 7

4 8

9

4 4

4 0

4 5

5 6

4.0 - 8

4.0 - 10

4.0 - 12

415

4 6

517

1 3

4 6

4 7

5 8

7 Load capacities and inflation

Ta le 5 and Ta le 6 g iv e the ma imum loa

ca acities for the cor esponding inflation pres ures,

with reference to a spe d of10 km/h For other

ma imum spe ds, a ply the per entag e ov erloa

g iv en inTa le 7

Table 5 — Maxim um tyre loa rating s and

inflation pres ures — Nom inal rim diameter

c des 4, 5, 6 and 7

Ta le 6 — Ma im um tyre loa rating s and

inflation pres ures — Nom inal rim diam eter

c des 8, 9, 10 and 12

Tyr siz desig nation

Ma im um lo d ca acities

for inflation pr s ur of

Tyr siz Lo d index

1 5 kPa a

kg

2 0 kPa a

kg

3.0 - 5

3.0 - 5

3.0 - 7

3.0 - 7

10

2

18

3

6

—

7

—

—

8

—

10

3.5 - 4

3.5 - 4

3.5 - 5

3.5 - 5

3.5 - 6

3.5 - 6

3.5 - 7

3.5 - 7

16

28

20

32

24

3

28

4

71

—

8

—

9

—

10

—

—

10

—

1 2

—

1 5

—

14

4.0 - 5

4.0 - 5

4.0 - 7

4.0 - 7

32

41

3

4

1 2

—

132

—

—

14

—

18

4.5 - 6

4.5 - 6

42

52

15

—

—

20

6.0 - 6

6.0 - 6

5

6

23

—

—

315

a

1 kPa = 1

–

b r

Tyr siz desig nation

Ma im um lo d ca acities

for inflation pr s ur of

Tyr siz Lo d index

1 5 kPa a

kg

2 0 kPa a

kg

2.5 -8

2.5 -8

2.5 -9

2.5 -9

16

28

20

3

71

—

8

—

—

10

—

10

2.7 -9

2.7 -9

2.7 - 10

24

3

3

9

—

—

—

1 1

1 8

3.0 -8

3.0 -8

3.0 - 10

3.0 - 10

3.0 - 12

3.0 - 12

26

3

32

42

3

4

9

—

1 2

—

132

—

—

132

—

15

—

17

3.2 - 12

3.2 - 12

4

51

14

—

—

19

3.5 -8

3.5 -8

3.5 -9

3.5 -9

3.5 - 10

3.5 - 10

3.5 - 12

3.5 - 12

3

4

3

4

41

51

4

5

1 1

—

13

—

14

—

16

—

—

17

—

18

—

19

—

23

4.0 -8

4.0 -8

4.0 - 10

4.0 - 10

4.0 - 12

4.0 - 12

4

5

4

6

5

6

16

—

18

—

2 2

—

—

2 8

—

25

—

29

4.5 - 12

4.5 - 12

61

72

25

—

—

3 5

6.0 -9

6.0 -9

6

7

325

—

—

4 7

a

1 kPa = 1

–2

b r

Ta le 7 — Perc ntag e overloa at other

m aximum spe ds

5

7

8

9

10

1 0

1 0

13

3

16

10

5

0

– 7

– 15

– 25

Annex A (inform ative)

Bibl og raphy

[ 1] ISO 424 -1:19 5, Motor cycle tyr es a nd r ims (Cod e d esigna ted s r ie ) — Pa r t 1: Tyr es

[ 2] ISO 424 -2:19 0, Motor cycle tyr es a nd r ims (Cod e-d esigna ted s r ie ) — Pa r t 2: Tyr e loa d r a tings

[ 3] ISO 424 -3:—, Motor cycl e tyr es a nd r ims (cod e-d esigna ted s r ie ) — Pa r t 3: R ims

)

[4] ISO 5 51-1:19 4, Motor cycle tyr es a nd r ims (metr ic s r ie ) — Pa r t 1: Design guid es

[5] ISO 5 51-2:19 4, Motor cycle tyr es a nd r ims (metr ic s r ie ) — Pa r t 2: Tyr e d imensions a nd l oa d -ca r r ying

ca pa ciie

[6] ISO 5 51-3:19 4, Motor cycle tyr es a nd r ims (metr ic s r ie ) — Pa r t 3: R a nge o a ppr oved r im contour s

[7] ISO 6 5 -2:19 0, Motor cycle tyr es a nd r ims (Cod e-d esigna ted s r ie ) — Dia meter cod es 4 to 12 —

Pa r t2:R ims

1)

To b publshed ( Re ision of ISO 4 4 -3:1 9 )

List ofreferences

Se national foreword

ISO 6054-1:

1994

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