Transmission types and number of gears

• Comparison of various transmission systems in range, ratios, gaps in gears, etc. Here I compare a fixed gear with 3x7 speed derailleur system, 3 speed Sturmey Archer internal gear hub, 3x10 speed deraileur system with close ratios on a road bike, Nexus/Alfine 7 and 8 speed internal gear hubs, to see what difference such gears make in average speed and whether the gaps in gears are too big and I consider how many gears are needed/useful.
• Experiences of the Nuvinci N171 and Nuvinci N360 (continuously changeable, the latter is lighter, changes gears more easily and has a bigger range of 3.60x instead of 3.50x for the N171)
• If things go as I want them then I will compare all the above systems with a Rohloff Speedhub (14 gears, with a gear range of 5.26x) in the near future.

Last modified: Mon Apr 1 23:50:19 CEST 2013