BRITISH STANDARD AUTOMOBILE SERIES BS AU 50 1 7 1 1989 ISO 5995 1 1982 Tyres and wheels — Part 1 Tyres — Section 7 Moped tyres — Subsection 7 1 Specification for tyre designations, dimensions and load[.]
Trang 1ISO 5995-1:
1982
ra ting s
[ISO title: Moped tyres and rim s — Part1: Tyres]
U C 6 9.1 3.0 2.5:( 08 3):6 9.1 8.3 :0 6.3 8
Trang 2This Bri shStan ard, ha ing
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Stan ards Commi e ,was
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ofthe Bo rd of BSI an comes
into fect on
2 Fe ruary1 8
© BSI 0 -2 0
The folowing BSI references
relate to the work on this
stan ard:
Commi e reference AUE/4
Draft for comment 7 / 71 5 DC
ISBN 0 5 0 1 1 3 7
The prep ration of this BritishStand rd was entrusted b the Automobi e
Stand rds Commit e ( AUE/-) to Tech ical Commit e AUE/4, upon which the
fol owing bodies 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
Ministry of Defence
Motor Cy cle Association of Great Britain
Motor Ind ustry Resear h 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
Amd No Date of is ue Comments
Trang 3Pag e
Section 1 Ty re desig nation and dimensions
Section 2 Loa rating s
Annex Ty res for smal cubic ca acity motor y cles and mopeds 6
Ta le 3 — Moped ty res in hig hwa serv ice— Desig nation
Ta le 4 — Moped ty res in hig hwa serv ice— Desig nation
Ta le 5 — Ma imum loa ca acity for cor espond ing
Ta le 6 — Ma imum loa ca acity for cor espond ing
Ta le 7 — Load ca acities and relev ant inflation pres ures 6
Trang 4National foreword
This S bsection of this Part of BSAU5 , prep red und er the direction of the
Automobi e Stand rds Commit e , is identical with ISO5 9 -1:19 2
( confirmed19 7) “ Moped tyr es a nd r ims— Pa r t1: Tyr es” publshed b the
International Org anization for Stand rdization ( ISO) Other Parts of the
stand rd are:
— Pa r t2: Whe ls a nd r ims;
— Pa r t3: Va lve
Term inolog y and conventions The text of the International Stand rd has
be n a prov ed as suita le for publcation as a BritishStand rd without
d ev iation Some terminolog y and certain conv entions are not identical with those
used in BritishStand rds; at ention is d rawn especialy to the fol owing
W herev er the words “ International Stand rd” a pear,refer ing to this stand rd ,
they should be read as “ Subsection of BSAU5 ”
The comma has be n used as a decimal marker In BritishStand ards it is cur ent
practice to use a ful point on the b selne as the decimal marker
Cros - referenc s There are no cor esponding BritishStand rd s for
ISO3 3 :19 7 or ISO42 3-1:19 8 The Tech ical Commit e has rev iewed the
prov isions of ISO3 3 an ISO42 3-1 an has d ecided that they are ac epta le
for use in conju ction with this stand ard
A British Stand ard d oes not purport to includ e al the neces ary prov isions of a
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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
Trang 51 Scope
This International Stand ard esta l shes the
desig nation,dimensions, and loa rating s for moped
ty res
1)
ISO5 9 -2 wi deal with req uirements for rims
2)
2 Field ofa ppl cation
This International Stand ard a pl es to moped ty res,
hav ing a ma imum spe d of5 km/h, fit ed on rims
with a nominal d iameter cor esponding to the
codes8–9–10–1 –14–15–16–17–18 –19
–2
3 Ref r nces
ISO3 3 , R oa d vehicle — Type — Ter ms a nd
d efiniions
ISO42 3-1, Definiion o some ter ms us d in the tyr e
ind ustr y— Pa r t1: Pneuma tic tyr es
4 Definitions
For the purposes of this International Stand rd , the
d efinitions g iv en in ISO42 3-1 as wel as the
fol owing definition a ply
4.1
m oped
a two-whe led or thre -whe led motor-driv en
v ehicle, with a ma imum desig n spe d not
exce d ing5 km/ h I the driv ing motor is a thermic
eng ine, its displacement or eq uiv alent ca acity
must not exce d5 cm
3
[ Definition g iv en in ISO3 3 ]
Section 1 Tyr desig nation a nd
dimensions
5 Tyre desig na tion
The desig nation shal be shown on the sidewal of
the ty re an shal includ e dimensional and serv ice
characteristic marking , and such marking s shal
be close to each other
5.1 Dimensional characteristic shal include:
5.1.1 Nominal s ction width
The nominal section width shal be ex res ed b a
code ( se Ta le 2 for code cor elations)
5.1.2 Nominal rim diameter
The nominal rim diameter shal be ex res ed b a
code ( se Ta le 1 for code cor elations)
5.2 Serv ice characteristic shal includ e the word
“ MOPED” or “ CYCLOMOTEUR” or
“ CICLOMOTORE”
6.1 Calculation of “desig n new tyre”
dim ensions
6.1.1 De ign new t yre o eral diameter ( D
o
The desig n new ty re ov eral d iameter is the sum of
the nominal rim diameter ( D
r plus twice the desig n
new ty re section heig ht (H):
D
o
=D
r +2 H
For those ty res using a nominal rim diameter cod e,
se , inTa le 1, the v alue of D
r
to be used
Ta le 1 — Nom inal rim diam eter co e
6.1.2 De ign new t yre s ct ion height ( H)
For the desig n new ty re section heig ht ( H)
cor esponding to nominal section wid th ( S
N ),
se Ta le 2
Ta le 2 — Se tion heig ht
1)
An Internatonal Stan ard is in pre araton relatng to a sp cial series of mo ed tyres ha ing a ma imum sp ed of1 0km/h
2)
In pre araton
Co e
Nom inal rim diam ete
D
r
mm
8
9
10
1
14
15
16
17
18
19
2
20
2 9
25
3 5
3 6
3 1
4 6
4 2
4 7
4 3
5 9
Nom inal se tion width
S
N
Co e
Se tion height
H
mm
13/4
2
21/4
21/2
23/4
3
31/4
5
5
6
71
7
82
9
Trang 66.2 Calculation of “maxim um o eral (g rown)
tyre dimensions in servic ”
These dimensions include protectiv e ribs, let ering ,
embel shment, man facturing tolerances, special
trea config urations and g rowth due to serv ice
6.2.1 Max imum o eral (gr wn) width in
s r ic ( W
ma )
The ma imum ov eral width in serv ice is equal to
the product of the d esig n new ty re section wid th ( S)
b the co ficient1,0 :
W
ma
=1,0 S
6.2.2 Max imum o eral (grown) diameter in
s r ic ( D
oma
)
The ma imum ov eral d iameter in serv ice is eq ual to
the nominal rim diameter ( D
r plus twice the
product of the desig n new ty re section heig ht ( H) b
the co ficient1,0 :
D
o
=D
r
+2,16H
6.3 Desig n new tyre dim ensions and o eral
tyre dim ensions in servic
Ta le 3 g iv e desig n new ty re dimensions in serv ice
for ty res desig nated rim d iameter
cod es14to2 Ta le 4 is for rim d iameter cod es8
to1
7 Method ofmea surement oftyr
dimensions
Before measuring , ty res shal be mou ted on the
measuring rim, inflated to the recommend ed
pres ure, an 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
Table 3 — Mo ed tyres in hig hwa servic — Desig nation and dim ensions—
Rimdiam eterco e: 14 to2
Dimensions in milimetres
Tyr designation
Measuring
rim width
R
M Desig n new tyr dim ensions Grown tyr dim ensions in se vic
Se tion
width
S
Oute
diam ete
D
o
Ma im um o e al
se tion width
W
ma
Ma im um o e al
diam ete
D
o ma
13/4–19 MOPED or
CYCLOMOTEUR
or CICLOMOTORE
2–14
2–16
2–17
2–18
2–19
2–2
”
”
”
”
”
”
4 8
518
5 4
5 9
5 5
6 0
5
4 7
527
5 3
5 8
6 4
6 0
21/4–14
21/4–15
21/4–16
21/4–17
21/4–18
21/4–19
21/4–2
”
”
”
”
”
”
”
4 2
5 7
5 2
5 8
5 3
6 9
6 5
6
4 2
517
5 2
5 8
5 3
619
6 5
21/2–15
21/2–16
21/2–17
21/2–18
21/2–19
”
”
”
”
”
523
5 8
5 4
5 9
625
7
5 4
5 9
5 5
610
6 6
23/4–15
23/4–16
23/4–17
23/4–18
”
”
”
”
5 3
5 8
5 4
6 9
81
5 5
5 0
5 6
62
Trang 7Ta le 4 — Mo ed tyres in hig hwa servic — Desig nation and dim ensions—
Rimdiametercode: 8 to12
Section 2 Loa d ra ting s
8 Load ca pa cities and inflation
8.1 The loa ca acities and the relev ant inflation
pres ures shown in the ta les refer to the ma imum
spe d of5 km/ h in the case of ty res marked in
ac ord nce with5.2
Dimensions in milimetres
Tyr designation
Measuring
rim width
R
M Desig n new tyr dim ensions Grown tyr dim ensions in se vic
Se tion
width
S
Oute
diam ete
D
o
Ma im um o e al
se tion width
W
ma
Ma im um o e al
diam ete
D
oma
CYCLOMOTEUR
or CICLOMOTORE
2 1/2–8
2 1/2–9
”
”
3 5
3 1
7
3 6
3 2
3 10
3 1
”
”
418
4 9
91
4 1
4 2
Trang 8Ta le 5 — Ma im um loa capacity for cor esponding inflation pres ure—
Rimdiameterco e: 14 to2
Tyr desig nation
a
Ma im um lo d ca acity, kg
Inflaton pres ure
b
2 0kPa
Inflaton pres ure
b
2 5kPa
CYCLOMOTEUR or
CICLOMOTORE
2–14
2–16
2–17
2–17REINFORCED
2–18
2–19
2–2
”
”
”
”
”
”
7
8
8
—
8
9
9
—
—
—
1 0
—
—
—
21/4–14
21/4–15
21/4–16
21/ 4–16 REINFORCED
21/4–17
21/ 4–17 REINFORCED
21/4–18
21/4–19
21/ 4–19 REINFORCED
21/4–2
21/ 4–22 REINFORCED
”
”
”
”
”
”
”
9
9
9
—
10
—
10
10
—
1 5
—
—
—
—
13
—
13
—
—
14
—
15
21/2–15
21/2–16
21/ 2–16 REINFORCED
21/2–17
21/2–18
21/2–19
21/ 2–19 REINFORCED
”
”
”
”
”
10
1 0
—
1 5
1 0
1 0
—
—
—
15
15
—
—
16
23/4–15
23/4–16
23/ 4–16 REINFORCED
23/4–17
23/ 4–17 REINFORCED
23/4–18
”
”
”
”
1 0
1 5
—
13
—
13
—
—
17
—
17
—
3 17
3–17 REINFORCED
—
—
19
a
Reinfored ma b re laced b the a bre iaton “R INF”
b
1kPa=1
–
b r
Trang 9Ta le 6 — Ma im um lo d ca acity for cor esponding inflation pres ure—
Rim diameter co e:8 to12
Tyr desig nation
a
Ma im um lo d ca acity, kg
Inflati on pres ure
b
2 0kPa
Inflaton pres ure
b
2 5kPa
CYCLOMOTEUR or
CICLOMOTORE
2 1/2–8
2 1/ 2–8 REINFORCED
2 1/2–9
”
”
7
—
8
—
10
—
3 10
3 1
”
”
1 0
1 0
—
—
a
Reinfor ed ma b re laced b the a bre iaton “R INF”
b
1kPa=1
–
b r
Trang 10Annex Tyres for smal cubic capa city
motorcycles a nd mopeds
( not p rt of the Stand rd )
Some ty res of simi ar siz desig nation and
dimensions to those shown inTa le 3 but with
d iferent perormance ca a i ties are
man factured
These ty res d esig ned for a ma imum spe d
of10 km/ h hav e the fol owing d iferences:
a) the word “MOPED” or “ CYCLOMOTEUR” or
“ CICLOMOTORE” is not marked on the ty re
sidewal ;
b) the serv ice characteristic indicating the
“LOAD INDEX ” and the “ SPEED SYMBOL” ma
be marked on the ty re sid e wal
N T Sp ed sy mb l “J”( 10 km/ h) would a ply;
c) the load ca acities and relev ant inflation
pres ures a propriate to a ma imum spe d
of10 km/h, are shown in7;
d ) the load ca acities ofTa le 7 can be inc eased
b up to3 % when the a ov e ty res are fit ed on
mopeds ( ma spe d5 km/ h) desig ned for
car y ing an a ditional p s eng er
The relev ant inflation pres ure must be fixed b
ag re ment with the relev ant ty re man facturer
Ta le 7 — Lo d ca acities and relev nt inflation pres ures
Tyr desig nation
a
Lo d ca acity, kg
Inflation pr s ur ,
kPa b
2–16
2–17 REINF
2–18
2–19
20J
31 J
2 J
24J
8
10
8
9
25
27
25
25
21/4–15
21/4–16
21/ 4–16 REINF
21/4–17
21/ 4–17 REINF
21/4–18
21/4–19
24J
26J
3 J
28J
3 J
3 J
3 J
9
9
132
10
13
10
10
25
25
27
25
27
25
25
21/2–16
21/ 2–16 REINF
21/2–17
21/ 2–17 REINF
21/2–18
21/2–19
21/ 2–19 REINF
31 J
42 J
3 J
4 J
3 J
3 J
4 J
10
15
1 5
15
1 1
1 1
16
25
27
25
27
25
25
27
23/4–16
23/4–17
23/ 4–17 REINF
3 J
3 J
4 J
1 5
132
17
25
25
27
3 17
3–17 REINF
3 18
41 J
51 J
42 J
14
19
15
25
27
25
a
“R INF” ma b re laced b “R INFOR ED” in the tyre size desig naton
b
1kPa=1
–
b r
Trang 11Publica tions referred to
Se national foreword
Trang 12ISO 5995-1:
1982
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