Post by richardp on Jul 9, 2013 10:41:40 GMT
When riding BC regional youth events at the Stourport Circuit, there are maximum gear restrictions for all ages. The following table gives the maximum gear allowed and also some suggested chainring/sprocket combinations for 700c wheels using 23mm tyres, you can measure the distance travelled of one rotation of the pedal crank for smaller tyres. Please note that this does not apply to Go-ride racing events but it is recommended.
BRITISH CYCLING GEAR LIMITS
CATEGORY GEAR LIMIT EXAMPLE FOR 700c WHEELS and a 23mm tyre.
Age category for the year. Roll out metres Approx Gear Inches Chain ring/Sprocket combinations that work.
Youth E Under 8 at 1st Jan 5.10 metres 64 inch 39×16 / 41×17 / 43×18 / 48×19
Youth D Under 10 at 1st Jan 5.40 metres 68 inch 41×16 / 43×17 / 46×18 / 49×19
Youth C Under 12 at 1st Jan 6.05 metres 76 inch 39×14 / 42×15 / 45×16 / 48×17
Youth B Under 14 at 1st Jan 6.45 metres 80 inch 39×13 / 42×14 / 45×15 / 51×17
Youth A Under 16 at 1st Jan 6.93 metres 88 inch 39×12 / 42×13 / 47×15 / 52×16
BRITISH CYCLING GEAR LIMITS
CATEGORY GEAR LIMIT EXAMPLE FOR 700c WHEELS and a 23mm tyre.
Age category for the year. Roll out metres Approx Gear Inches Chain ring/Sprocket combinations that work.
Youth E Under 8 at 1st Jan 5.10 metres 64 inch 39×16 / 41×17 / 43×18 / 48×19
Youth D Under 10 at 1st Jan 5.40 metres 68 inch 41×16 / 43×17 / 46×18 / 49×19
Youth C Under 12 at 1st Jan 6.05 metres 76 inch 39×14 / 42×15 / 45×16 / 48×17
Youth B Under 14 at 1st Jan 6.45 metres 80 inch 39×13 / 42×14 / 45×15 / 51×17
Youth A Under 16 at 1st Jan 6.93 metres 88 inch 39×12 / 42×13 / 47×15 / 52×16