en.wikipedia.org/wiki/Bicycle_gearing gear system Bicycle gearing gears on a road bike [en] Bicycle gearing 24 speeds gears 2 or 3 chainrings crankset and gearing http://en.wikipedia.org/wiki/Bicycle_gearing Wikipedia en.wikipedia.org/wiki/Bicycle_gearing#Efficiency [en] gear mechanisms 14 gears gear ratios gear system slow-moving en.wikipedia.org/wiki/Bicycle_gearing 14 gears Wikipedia's bicycle gearing page gear ratios [en] [en] gearing din utrustning changing gears gear system http://en.wikipedia.org/wiki/Bicycle_gearing ﻿gear﻿ slope cycling Bicycle Gearing Entry on Wikipedia gear ratios gears [en] 14 gears definition en.wikipedia.org/wiki/Bicycle_gearing