Bsi bs au 050 4 6 3 1991 (2000) iso 6054 2 1990

BRITISH STANDARD BS AU 50 4 6 3 1991 ISO 6054 2 1990 Tyres and wheels — Part 4 Rim profiles and dimensions — Section 6 Motorcycle rims — Subsection 6 3 Specification for code designated series (diamet[.]

ISO 6054-2:

1990

This Bri shStan ard, ha ing

b en pre ared u der the

directonof the Automo ile

Stan ards Policy Commi e ,

waspublished u der the

authoriyof the Stan ards

Bo rdan comes

into efect on

3 J n ary1 9

© BSI0 -2 0

The folowing BSI references

relate to the work on this

stan ard:

Commi e reference AUE/4

Draft for comment8 / 75 4 DC

The prep ration of this BritishStand rd was entrusted b the Automobi e

Stand ards Pol cy Commit e ( AUE/-) to Tech ical Commit e AUE/4, upon

which the fol owing bod ies were represented :

Ag ricultural Eng ine r ’ Association

Automobi e Association

British Industrial Truck Association

British Pres ure Gaug e Man facturer ’ Association

British Rub er Man facturer ’ Association

Bus and Coach Cou ci

Dep rtment of Transport

Freig ht Transport Association

Institute of Roa Transport Eng ine r ( Incorporated)

Motor Cy cle Ind ustry ’s Association of Great Britain Ltd

Motor Ind ustry Resear h Association

National Ty re Distributor ’ Association

Retrea Man facturer ’ Association

Roa Haulag e Association Ltd

Roy al Automobie Club

Society of Motor Man facturer and Tra er Ltd

Am endm ents is ued sinc publ cation

Pag e

Annex A ( normativ e) Rim cir umference measurement 6

Fig ure 2 — Drop centre rims — Contour dimensions 3

Fig ure 3 — 5° ta ered bead seat rim contour ( MT ty pe) 4

Fig ure 4 — Bea seat contour for MT rims without h mp 5

Ta le 5 — Dimensions of ta ered bead seat rims 4

Ta le 6 — Bead seat contour for MT rims without h mp 5

Ta le A.1 — Mandrel diameter an ta e cir umferences 6

National foreword

This S bsection of this Part of BS AU5 , prep red und er the direction of the

Automobi e Stand ards Polcy Commit e , is id entical with ISO6 5 -2:19 0

“ Motor cycle tyr es a nd r ims (cod e-d esigna ted s r ie )— Dia meter cod es4 to12—

Pa r t2: R ims”, publ shed b the International Org anization for Stand ardization

( ISO) The cor esponding ty re detai s are d ealt with in Part1 ( Subsection6.3)

Other Parts of the stand rd are:

— Pa r t1: Tyr es;

— Pa r t2: Whe ls a nd r ims;

— Pa r t3: Va lve

Part4 of BS AU5 ( cov ering rim profi es and dimensions) has be n introd uced to

as ist c os -referencing betwe n ty re specifications and the cor esponding rim

specifications Subsections of Part4 wi l p rtial y super ede the information

contained in BS AU5 -2.1b:19 0 which has be n amended ac ording ly

Cros - referenc s

The Tech ical Commit e has rev iewed the prov isions of ISO3 1 , to which

reference is ma e in the text, and has d ecided that they are ac epta le for use in

conjunction with this stand ard

A British Stand ard d oes not purport to includ e al the neces ary prov isions of a

contract User of British Stand rd s are responsible for their cor ect a plcation

Com pl anc with a British Standard does not ofitself confer im m unity

f om leg al o l g ations

Sum mary of pag es

This document comprises a f ont cov er, an insid e font cov er, p g esi andi ,

p g es1 to6, an inside b ck cov er and a b ck cov er

This stand rd has be n up ated ( se copy rig ht d ate) an ma hav e ha

amendments incorporated This wi l 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 rim dimensions for

an inch-code-desig nated series of motor y cle ty res

for d iameter codes4 to1 It sets only those rim

contour dimensions neces ary for the mou ting and

fitment of the ty re to the rim

Ty re desig nations, dimensions and loa rating s are

g iv en in ISO6 5 -1

2 Normative r f r nce

The fol owing stand ard contains prov isions which,

throug h reference in this text, constitute prov isions

of this p rt of ISO6 5 At the time of publ cation,

the edition ind icated was v ald 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 ity of a ply ing the most

recent edition of the stand rd ind icated below

Member of IEC and ISO maintain reg ister of

cur ently v ald International Stand rds

ISO3 1 :19 7, Whe ls/r ims— Nomencla tur e,

d esigna tion, ma r king a nd u is o mea sur ement

3 Finish

3.1 Rim contour

The rim on the side of the ty re shal hav e a smo th

contour fe of sharp edg es

3.2 Rim v lve hole

Valv e hole edg es on the ty re side of rims shal be

rou ded or chamfered On the hub sid e, the edg es

shal be fe of bur s,which could d amag e the v alv e

4 Desig nation

The rim shal be desig nated , in ac ord ance with

ISO3 1 , b its nominal diameter cod e and

nominal rim width cod e

EX AMPLE

8× 2.10

5 Divided rims

1)

5.1 Rim contour

Dimensions and tolerances for div id ed rims shal be

as g iv en in Ta le 1 and Fig ure 1

5.2 Rim diameter

The rim diameter code and specified rim diameter

shal be as g iv en in Ta le 2

6 Drop- centr rims

6.1 Rim contour

Dimensions and tolerances for drop-centre rims

shal be as g iv en in Ta le 3 and Fig ure 2

6.2 Rim diameter

The rim diameter code and specified rim diameter

shal be as g iv en in Ta le 4

7 Taper d bead seat rims (MT type)

7.1 Rim contour

Dimensions and tolerances for ta ered bead seat

rims shal be as g iv en in Ta le 5 an Fig ure 3

7.2 Bea seat contour

Bead seat contour for MT rims without h mp shal

be as g iv en in Ta le 6 an Fig ure 4

8 Recomm ended rim widths

The recommend ed rim widths are indicated in

Ta le 7

9 Rim circumference mea sur ment

Information on rim cir umference measurement is

g iv en in Annex A

1)

Further stu y is to co er harmonizaton of rim dimensions an tolerances for2.5 C,3.0 D an 4.0 E rims,in the future

ISO3 3 -1,Ind ustr ial tyr es a d r ims— Pa r t1: Pneumatc tyr es (metr ic sr ie ) on5° taper ed or lat bas r ims— Desig aton,

d imensions a d mar kin , ISO4 5 -3:1 8 , Tyr es a d r ims (xistn s r ie) for a r iculur al tr actor s a d machine —

Pa r t3:R ims an this p rt of ISO6 5

Ta le 1 — Divided rims— Contour dim ensions

1)

Se b low Ta le 1

Fig ure 1 — Divided rim contour

Dimensions in milimetres

Nom inal rim

width co e

a

2 R

3 R

8 R

1

F

min ma

7

10,5

1

2

5

8,5

1 ,5

2.15

b

14

1 ,5

17,5

14

4,5

6,5 10,5

1

4.0 E

101,5

4.0 D

a

For of-centre na es ( rims which are spli of-centre) where the v lue is the minimum width for ta ered b ad se t

b

For nominal rim diameter code only

+1

–0,5

Ta le 2 — Divided rims— Diam eter

Ta le 3 — Dro - centre rim s— Contour dim ensions

Dimensions in milimetres

Nom inal rim

diam ete co e

S e ified rim diam ete

D

4

5

6

7

8

9

10

10 ,8

1 6,2

151,6

17

202,4

2 7,8

25 ,2

Fig ure 2 — Dro -c ntre rim s — Contour dim ensions

Dimensions in milimetres

Nom inal

rim width

co e

2 R

3 R

4 R

5 R

1

9

6,5

7,5

ma

+1

–0,5

+1

–0,5

+1

–0,5

+1

–0,5

Ta le 4 — Dro -c ntre rim s— Diam eter

Ta le 5 — Dimensions ofta ered bea seat rim s

Dimensions in milimetres

Nom inal rim

diam ete co e

S e ified rim diam ete

D

8

9

10

1

202,4

2 7,8

25 ,2

3 4

Fig ure 3 — 5° tapered bea seat rim contour (MT ty e)

Dimensions in milimetres

Nom inal

rim width

co e

a

1 R

2 R

3 R

4 R

5 R

6 R

7

tol

tol

min min ma ± 0,5 min ± 0,5 ± 0,5

10,5

14

± 0,5 1 ,5

3

13

1

5,5

a

E=Hump locaton

+1

–0,5

+1,5

1 –

+1

–0,5

Ta le 6 — Bea seat contour for

MTrim swithout hump

Ta le 7 — Re om m ended rim widths

Fig ure 4 — Bea seat contour for

MTrimswithout hum p

Dimensions in milimetres

Nom inal rim width co e

P

2.5 MT

13

2.7 MT

3.0 MT

3.5 MT

+2

0

Nom inal se tion

width, S

N

Co e

Re om m ended rim widths

2.5

2.7

3.0

3.25

3.5

4.0

4.5

6.0

1.5 –1.7 –1.8

1.5 –1.7 –1.8 –2.10–2.15

1.8 –2.10–2.15–2.5

2.10–2.15–2.5

2.10–2.15–2.5

2.15–2.5 –3.0

3.0

4.0

Annex A (normative)

Rim circumference mea sur ment

The bea seat rim cir umference measurements shal be ma e using a ta e g aug e the leng th of which is

related to a mand rel d iameter which is d eriv ed f om the specified rim diameter Mandrel diameter and ta e

cir umferences are presented in Ta le A.1

The tolerance on the mandrel diameter is mm

Ta le A.1 — Mandrel diam eter and ta ecircum ferenc s

Dimensions in milimetres

Nom inal rim

diam ete co e

Mandr l

diam ete

a

D

M

Ta e cir um fe enc

b

min

; (D –0.4)

ma

; (D +0.4)

4

5

6

7

8

9

10

12

9 ,9

1 5,3

15 ,7

17 ,17

201,5

2 6,9

252,3

3 3,17

31 ,8

3 2,6

4 2,4

5 2,2

6 2

71 ,8

7 1,6

9 1,2

315,3

3 5,1

4 4,9

5 4,9

6 4,5

714,3

7 4,1

9 3,7

a

Bal ta e diameter:1 mm Bal sizes other than1 mm ma b used if suia le alteratons to

the man rel diameter an cir umference dimensions are made

b

;=3,1 15

0

–0, 5

Publication(s) referred to

Se national foreword

ISO 6054-2:

1990

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