8245Re: Sturmey classic AW explanatory video (Was: Sturmey S3X)
- Mar 2, 2013Dan wrote in part:
> There are no gears that have fewer parts whirringAnother common misconception is the belief that the gears still spin when the rider coasts on an IGH. Actually, the gears are locked to the driver -> cog -> chain -> cranks. If the cranks aren't turning, the little gears aren't turning. When coasting, only the hub shell is rotating [and the little drive pawls on the output of the gears (the IGH's freewheel) are clicking in and out].
> around as these hubs are all constant mesh. The only
> gear not rotating at any given time while a hub is in
> use is whatever sun gear is coupled to the axle .
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