Originally Posted by
m_sasso
Current rules read as of 6/12/20, no exemptions for
flying 200 m, flying lap, sprint, team sprint, keirin, 500 metres and 1 kilometre
Portions of other articles are posted only for reference1.3.013
A bicycle shall not measure more than 185 cm in length and 50 cm in width overall. A tandem shall not measure more than 270 cm in length and 50 cm in width overall.
The peak of the saddle shall be a minimum of 5 cm to the rear of a vertical plane passing through the bottom bracket spindle.
The peak of the saddle can be move forward until the vertical line passing through the bottom bracket spindle where that is necessary for morphological reasons. By morphological reasons should be understood everything to do with the size and limb length of the rider.
Any rider who, for these reasons, considers that he needs to use a bicycle of lesser dimensions than those given shall inform the commissaires' panel to that effect at the time of the bike check.
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GENERAL ORGANISATION OF CYCLING AS A SPORT 60
UCI CYCLING REGULATIONS
page61image22274112Only one exemption for morphological reasons may be requested; either the peak of the saddle can be moved forward or the handlebar extensions can be moved forward, in accordance with Article 1.3.023.
(text modified on 01.10.10; 01.02.12; 01.10.12; 23.10.19)
- 1.3.014 The plane passing through the highest points at the front and rear of the saddle can have a maximum angle of nine degrees from horizontal.
The length of the saddle shall be 24 cm minimum and 30 cm maximum. A tolerance of 5mm is allowed.
(text modified on 01.01.03; 01.02.12; 01.12.15)
- 1.3.015 The distance between the bottom bracket spindle and the ground shall be between 24 cm minimum and maximum 30 cm.
- 1.3.016 The distance between the vertical passing through the bottom bracket spindle and the front wheel spindle shall be between 54 cm minimum and 65 cm maximum (1).
The actual rules doesn't mention exemption for track events but the UCI Clarification Guide of the UCI Technical Regulation do mention exemption for track events in page 38
UCI clarification Tech Reg
''For sprint events (sprint, team sprint, keirin,flying 200 m,flying lap): the tip of the saddle can be advanced to the vertical plane passing through the centre of the bottom bracket and the handlebars can be advanced to 10 cm in front of the front wheel axle without an exemption for morphological reasons.
For endurance races (points race, elimination race, scratch race and madison): the position is identical to that for road races and cyclo-cross events with the saddle withdrawn at least 5 cm behind a vertical plane passing through the centre the bottom bracket anda maximum advancement of the handlebars of 5 cm in front of the front wheel axle. An exemption for morphological reasons is possible for riders of small stature who want to bring the tip of the saddle forward up to the vertical plane passing through the centre of the bottom bracket.
For pursuit events (individual pursuit, team pursuit): the position is identical to that for roadtime trials with the saddle withdrawn at least 5 cm behind a vertical plane passing through the centre of the bottom bracket and an advanced position for handlebar extensions of a maximum of 75 cm in front of the centre of the bottom bracket. An exemption for morphological reasons is possible for riders of small stature who want to bring the tip of the saddle forward up to the vertical plane passing through the centre of the bottom bracket. Furthermore, an exemption for morphological reasons is possible for riders of large stature who want to advance the handlebar extension to up to 80 cm in front of the centre of the bottom bracket.Only one exemption for morphological reasons is allowed per rider.
For time trials (500 m or 1km): The tip of the saddle can be advanced to the vertical plane passing through the centre of the bottom bracket and the handlebar extension can be positioned up to a maximum of 75 cm in front of the centre of the bottom bracket. An exemption for morphological reasons is possible for riders of large stature who want to advance the handlebar extension to up to 80cm in front of the centre of the bottom bracket.''