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Cycling Victoria - Rules & Regulations -

Junior Gear Limitations

Junior Equipment Rules

Gearing restrictions apply to all Junior category-specific races.

J11/13 = 5.500 metres
J15 = 6.000 metres
J17 = 6.500 metres
J19 = 7.930 metres

These represent the maximum distance covered per crank revolution.

The following chart gives a number of gear combinations that suit the criteria. The calculations are based on a standard 700C rim with racing type slick HP tyre. However, it must be noted that this is a guide only and the actual distance covered will be dependent upon brand and type of tyre fitted, therefore the rider must ensure compliance by
measuring their own “roll-out”.

J11/13 - 5.500 metres
39 x 16 = 5.13 m          40 x 16 = 5.26 m     41 x 16 = 5.39 m
42 x 17 = 5.19 m          43 x 17 = 5.32 m     44 x 17 = 5.44 m
45 x 18 = 5.26 m          46 x 18 = 5.37 m     47 x 18 = 5.49 m
48 x 19 = 5.31 m          49 x 19 = 5.42 m     50 x 20 = 5.26 m

J15 - 6.000 metres
39 x 14 = 5.86 m         40 x 15 = 5.61 m     41 x 15 = 5.75 m
42 x 15 = 5.89 m         43 x 16 = 5.65 m    44 x 16 = 5.78 m
45 x 16 = 5.91 m         46 x 17 = 5.69 m     47 x 17 = 5.81 m
48 x 17 = 5.94 m         49 x 18 = 5.72 m     50 x 18 = 5.84 m
51 x 18 = 5.96 m

J17 - 6.500 metres
39 x 13 = 6.31 m         40 x 13 = 6.47 m     41 x 14 = 6.16 m
42 x 14 = 6.31 m         43 x 14 = 6.46 m     44 x 15 = 6.17 m
45 x 15 = 6.31 m         46 x 15 = 6.45 m     47 x 16 = 6.18 m
48 x 16 = 6.31 m         49 x 16 = 6.44 m     50 x 17 = 6.19 m
51 x 17 = 6.31 m         52 x 17 = 6.43 m     53 x 18 = 6.19 m

J19 - 7.930 metres
HP tyre
39 x 11 = 7.46 m         40 x 11 = 7.64 m     41 x 11 = 7.83 m
44 x 12 = 7.71 m         45 x 12 = 7.89 m     46 x 13 = 7.44 m
47 x 13 = 7.60 m         48 x 13 = 7.77 m     49 x 13 = 7.93 m
50 x 14 = 7.51 m         51 x 14 = 7.66 m     52 x 14 = 7.81 m
53 x 15 = 7.43 m

Single
39 x 11 = 7.57 m        40 x 11 = 7.76 m     44 x 12 = 7.83 m
46 x 13 = 7.55 m        47 x 13 = 7.72 m     48 x 13 = 7.88 m
50 x 14 = 7.63 m        51 x 14 = 7.78 m     52 x 14 = 7.93 m
53 x 15 = 7.54 m

For all junior categories up to & incl JM17 – JW17 the following equipment restrictions will apply for road & track competitions.

For all events a standard triangular frame may only be used. Such frames shall consist of standard tubing of dimensions no more than 80mm maximum and no less than 25mm minimum. (refer Annexure 6 UCI Bicycle Regulation).
For all events, wheels must have at least 16 spokes with the sole exception that construction of the rim shall exclude the use of composite fibres (Carbon, Kevlar, Aramid and similar fibres).
Only high pressure detachable tyres and tubes shall be used. A detachable type tube means the tube is detachable from the tyre casing. Such high pressure tyres shall be beaded.

Handlebars

Handlebars shall be of a standard or "Classic" style. However bolt on handlebar extensions shall be allowed for JM15, JW15, JM17 AND JW17 in the individual pursuit, team pursuit and road and track time trials only. No modification to the extension shall be allowed. (06/09/08)

Page 9 – 2009 Technical Regulations 3.6.04 clause 1

Senior/Masters & J19 Track Racing Competence

It is expected that all cycling clubs have a method of developing, training and assessing track racing competence.

All Elite, Masters & J19 riders participating in their first track open are required to submit a support letter from their club which endorses the rider’s competence in track racing.

The Chief Commissaire of any track open can order that a rider of any category undergo an independent assessment of track racing competence prior to lodgment of their next open track entry.