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IS 623 (2008): Bicycle - Bicycle frames ( Amalgamating SI3404: 1979) [TED 16: Bicycles]
IS 623: 2008(Amalgamating IS 3404 : 1979)
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Indian Standard
BICYCLE - BICYCLE FRAMES - SPECIFICATION
(Third Revision)
res 43.150
© BIS 2008
BUREAU OF INDIAN STANDARDSMANAK BHA VAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
October 2008 Price Group 3
Bicycles Sectional Committee, TED 16
FOREWORD
This Indian Standard (Third Revision) was adopted by Bureau of Indian Standards, after the draft finalized by theBicycles Sectional Committee had been approved by the Transport Engineering Division Council.
This standard was originally issued in 1955 and was subsequently revised in 1963 and 1993. Earlier requirementsof ladies bicycle frames were separately covered in IS 3404. Based on experience gained in the manufacture ofbicycle frames the revision of this standard has been taken up amalgamating both the standards covering therequirements of all types of frames. With the publication of this standard IS 3404 : 1979 'Specification for ladiesbicycle frames (first revision)' will be withdrawn.
The composition of the Committee responsible for the formulation of this standard is given in Annex A.
For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance withIS 2: 1960 'Rules for rounding off numerical values (revised)'. The number of significant places retained in therounded off value should be the same as that of the specified value in this standard.
IS 623: 2008
Indian Standard
BICYCLE - BICYCLE FRAMES - SPECIFICATION
( Third Revision)
1 SCOPE
This standard specifies the material and dimensionaland other requirements for frames suitable for beingfitted in popular sizes of bicycles including ladiesbicycles.
3.3 Lugs
Mild steel with sulphur and phosphorus content, eachnot exceeding 0.060 percent; or whiteheart malleableiron casting conforming to Grade WM350 of IS 14329.
4 DIMENSIONS2 REFERENCES
Cold drawn seamless, or electrically resistance buttwelded conforming to IS 2039 (Parts 1 to 3).
3.2 Liners
The following standards contain provisions. whichthrough reference in this text, constitute provisions ofthis standard . At the time of publication, the editionsindicated were valid. All standards are subject torevision and parties to agreements based on thisstandard are encouraged to investigate the possibilityof applying the most recent editions of the standardsindicated below.
IS No.
1131 : 2006
1132 : 1985
1133 : 1985
1134: 2004
2039 (Parts Ito 3): 1991
2061: 1995
10613: 2004
14329: 1995
3 MATERIAL
3.1 Frame Tubes
Title
Bicycle bottom bracket axle Specification (third revision)Specification for hicycle bottombracket adjustable ball cup (PH type)(second revision)Specification for bicycle bottombracket fixed ball cup (PH type)(second revision)Bicycles bottom bracket lock ringSpecification (third revision)Steel tubes for bicycle and cyclerickshaws - Specification (secondrevision)Bicycle - Front forks Specification (first revisionsCycles - Safety requirements forbicycles (first revision)Malleable iron castings
4.1 Frame Tubes
The frame shall conform to the dimensions specifiedin Fig . I, Fig. 2 or Fig. 3. The dimensions of the tubesspecified in Fig. I shall comply with those given inIS 2039 (Parts I to 3).
4.2 Screw Threads
The dimensions of screw threads on bottom bracketsshell for fixed and adjuster cups shall conform toIS 1131,IS 1132, IS 1133 and IS 1134.
5 MANUFACTURE
The tubes shall be fitted squarely to their respectivelugs. During brazing, the frame assembly shall besecurely held to prevent the relative movement of itsmembers. The tubes shall be so fitted as to be in oneplane and the axis of the bottom bracket shall beperpendicular to the plane of the frame (see 7.1 ).
6 FINISH
The frame shall be free from rust, scale and oilysubstances. It shall be suitably pretreated and stoveenamelled, spray-painted or otherwise treated to givea good/glossy finish.
7 TESTS
7.1 Trueness of Frame
The frame shall be fixed on a suitable surface platewith bottom bracket perpendicular (see Fig. 4). Theheights of the centre lines of the tubes and the chainand seat stays shall be measured from the surface plate.These heights shall not vary by more than ± 1.5 mmwith respect to the horizontal plane passing throughthe centre of the bottom bracket.
Mild steel with sulphur and phosphorus content, eachnot exceeding 0.060 percent.
7.2 Impact Test on Frame-Fork Assembly
For the purpose of load test, the frame shall be
34·8 x ',06 PITCH, BICYCLE THREADRH FOR THIS SIDE, LH FOR CHAIN SIDE
~)(.
-rI'J~(M
N
~
"-~ I ~ 10'!,·5
_ .2~BRIDGE:G:~DBETWEC" ---*-. TYRE
TOP TUBE\125·4 00
SEAT TUBE016'600
,66'8
•
BOTTOM BRACKET
l-.J
All dimensions in millirnetres.
FIG. 1 BICYCLE FRAME (SCHEMATIC)
HEAD TUBE ¢I 31.8 00
w
TOP HEAD lUG
LINERS
TOP TUBE4> 25.4 00
DOWN TUBe:Ifl28.600
BOTTOM BRACKET
"-¥.&lCJ.06,P/TCH BICYCLE THREADS,RH FOR THIS SIDE, l H FOR CHAIN SIDE
I I -2~ min . GAP BETWEEN.. • BRIDGE AND TYRE
~rnin.GAP BETWEEN\ BRIDGE AND TYRE
rn~N
~
All dimcnsions in millirnclrcs.
F<o. 2 t , m", S OCY,"" P"M."L SAO F",", (ScU''"''OC)
-en0-
t
§
29min.GAP BETWEEN~R'OGE AND TYRE
105tl.5
I I· 29 min. GAP BETWEEN• BRIDGE AND TVRE
34.8l(1.06,PITCH BICYCLE THREADS,RHFOR THIS SIDE, lH FOR CHAIN SIDESOmal(,
All dimensions in mi/limelrc:s .
FIG. 3 L."OIF.s B.cycu; CURVED BAR F~lofE (SCHEMAnC)
DOWN TUBE~28.6 00
HEAD TUBE. 31.8 00
~_r.QP HEAD LUG
40.
GAUGE BLOCK
CEN1RAL AXIS FOR/ /"B Ol l OM BRACKEl
/,/
IS 62.\ : 2008
Fll i . 4 TI.H 1'011 Til l L" I.SS m B WY CL I: FilA MI'
assembled wuh a fork of the same producuon lilt andconforming III the test requirements of IS :!061.
7.2.1 Impact Tt'.lt (Falling Mass)
When tested by the method described In 4.6.1 ofIS 10613 there shall be no visible evidence of fracture,and the permanent deformation of the assembl y.measured between the centre lines of the axles, shallnot exceed 40 mm after an impact of 39 .5 J of energy.
7.2.2 Impact Tnt (Falling Frame and Fork Assemblv!
When tested hy the method de scribed in 4.6.2 o fIS J()(l! .~ there shall he no vivihlc evidence of fracture.
7.J Test for Fini..h
7.•l1 A solid steel ball measuring 13 mrn 10 diametershall he dropped from a height of 1.5 m on any pannedport ion o f the frame . The pamt at the place where thesteel hall stn kes the frame shall \lo ithstand the Impa ctwuh our show 109 any sign of tear or peeling off .
7.•l2 The frame shall be kept dipped for one hour in a
5
5 percent common ~alt so lutio n at the temperaturesspecified below. The paint shall not soften. peel off orshow any change in colour:
a) Black enamel paint 80 °C, and
b) Other enamel paints ()()0c.
8 MARKING
Each frame shal! be marked with the manufacturer'sname, initials or trade-mark. and the country ofOrigin .The manufacturer's serial number sha]! be stampedsuitably .
8.1 BIS Certification Marldq
Frame may abo be marked with the Standard Mark.
8.1.1 The use of the Standard Mark IS governed hy thepro vision s of the Bureau ofIndian Standards Act. 1986and the Rule" and Regulations made thereunder . Thedetails of condiuons under wh ich the licence for theuse of the Standard Mark may be granted to themanufacturers or producers may be obtained from theBureau of Indian Standards.
IS 623 : 2008
ANNEXA
(Foreword)
COMMITI'EE COMPOSITION
Bicycles Sectional Committee, TED 16
Directorate General of Supplies and Disposals, New Delhi
Department of Industrial Policy & Promotion, New Delhi
Controllerate of Quality Assurance (Vehicles), Ahmednagar
Avon \spat & Power Limited (Rim Division), Ludhiana
Representativess)
SHRI PARAMJEET SINGH (ChfJiTllUln)SHRI R. S. BAINS (Alternate)
Ms REENA DAYAL
SHRI VIKRAM KAPURSHRI GIRISH KAPUR (Alternate)
SHRI ONKAR SINGH PAHWASHRI B. S. DH!MAN (Alternate)
SHRI HARCHARAN SINGHSHRI AsHWANI KUMAR BHAKHAN (Alternate)
SHRI NAGINDER SINGH BHOGALSHRI RATINDER SINGH BHOGAL (Alternate)
SHRI A. J. PAWARSHRI V. K. SINHA. (Alternate)
SHRI M. M. Au KHANSHRI B. C. NAYAK (Alternate)
GENERAL MANAGERSENIOR TEooocAL 0mcER (Alternate)
SHRI S. M. MUNJALSHRI P. M. WANJARJ (Alternate)
SHRI R. N. GOYALSHRI SUNIL CHOPRA (Alternate)
SHRI JAGDEEP SINGH
SHRI VINOD POODARSHRI S. P. SUICHRANI (Alternate)
SHRJ M. SRJNIVASANSHRI P. R. RAVIKUMAR (Alternate)
SHRI K. SUBRAMANIANSHRI N. MOHAN SUNDARAM (Alternate)
SHRI S. K. RAJSHRI Y. N. GUPrA (Alternate)
SHRI JOGlNDER KUMAR
SHRI AnT SINGHSHRI DARSMAN SINGH (Alternate)
SHRI L. K. MATHURSHRI SANJEEV SoOD (Alternate)
SHRI HARMINoER SINGH PAHWASIIRJ ROHIT PAHWA (Alternate)
SHRI R. L. GARGSHRI M. B. JAYA KUMAR (Alternate)
SIIRJ SANJEEV PAHWASHRI T. R. KUKREJA (Alternate)
SIIRJ SATISH KUMAR DHANoA
SHRI B. K. SETH
SHRI S. SADISH KUMARSHRI V. I>uRAnw (Alternate)
PREsIDENTSECRETARY (Alternate)
SHlU RAKESH KUMAR, Scientist 'F' and Head <TED)[Representing Director General (Ex-Officio»
Member SecretarySHRI P. S. MUlllAL
Scientist 'E' (TED), BIS
Bhogal Sons (Regd), Ludhiana
Organization
Bicycle & Sewing Machines (R&D Centre), Ludhiana
All India Bicycle Manufacturers Association, New Delhi
Atlas Cycles (Haryana) Limited, Sonepat
Avon Cycles Ltd, Ludhiana
Director of Industries, Ludhiana, Punjab
Directorate of Industries, Government of Haryana, Chandigarh
Metro Tyres Limited, Ludhiana
Nova Bicycle Industries, Ludhiana
Hero Cycles Ltd, Ludhiana
RaIson (India) Limited, Ludhiana
J. K. Cycles, Ludhiana
Kular Cycle Industries, Ludhiana
Hartex Rubber Ltd, Hyderabad
Eastman Industries. Ludhiana
Govind Rubber Ltd, Distt Ludhiana
Hamilton Industries Pvt Ltd, Ambarnath
Office of the Development Commissioner (SSI), New Delhi
United Cycle & Parts Manufacturers Association, Ludhiana
Sadem Industries, Ludhiana
Seth Industrial Corporation, Ludhiana
T. I. Cycles of India, Chennai
HIS Directorate General
6MGIPF-783 Deptt fo BlSi2oo8-25 10 2008-300 Boob
Bureau of Indian Standards
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Copyright
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Review of Indian Standards
Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedperiodically; a standard along with amendments is reaffirmed when such review indicates that no changes areneeded; if the review indicates that changes are needed. it is taken up for revision. Users of Indian Standardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of'BIS Catalogue' and 'Standards: Monthly Additions' .
This Indian Standard has been developed from Doc : No. TED 16 (588).
Amendments IssuedSince Publication
Amend No. Date of Issue
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