1. To convert metres to feet divide by 0.3048.
2. To convert Km to miles divide by 1.6093.
3. Measurement in inches = No. of teeth on Chainring x Diameter of rear wheel (27") divided by the number of teeth on the rear sprocket.
|Category||Distance||Gear Limit||Cog & Ring|
|Junior Under 18||65 miles||7.93 m||52 x 14|
|Junior Under 16||30 miles||6.90 m||42 x 13|
|Junior Under 14||15 miles||6.40 m||42 x 14|
Roller Racing for all categories, 8.26 m - cranks must be at least 165 mm.
The chain ring and cog sizes are given as recommendations only. For full details of gear restrictions consult the Northern Ireland Cycing federation Rules Of Racing. Gearing will be measured from the largest gear on the machine.