The maximum chaingear ratio for junior riders is based on age and discipline. Blocked gears will be allowed, except in National Championships. All tests for compliance (road and track) shall be done using the "roll-out method."
There is no restriction for cyclo-cross.
For road and track the limits are:
Road
17-18: 7.93 meters (26’) (52x14)
15-16: “
13-14: “
10-12: “
Track
17-18: Unrestricted
15-16: 6.78 meters (22'3") (48x15)
13-14: 6.36 meters (20'10.5") (48x16)
10-12: 6.00 meters (19’8”) (48x17)
The gear limit for a rider is determined by the age of the rider and the discipline, and applies in all events in that discipline – even when other entrants may not have the same (or any) limit. In other words, a junior racing in a cat 5 race must still use junior gears even though the non-junior racers will not be using the restricted gearing.
Note that the gear ratios listed are merely suggestions – the distance rolled out is the governing standard.
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