Old 05-02-12, 08:09 PM
  #7  
fietsbob
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Sturmey Archer 8 speed is all overdrive ratios, 1:1 is the low one, in the hub.

so Bigger wheels need smaller chainrings , Truvative hammerscmidt http://www.sram.com/truvativ/product...th/term-id/297
comes in 22 or 24 t, then adds a 1.6X cable operated overdrive internal gear.
so then its a 35, or 38t + a half tooth worth
Swiss made Schlumpf speed drive is also 1.6X,
Schlumpf High speed drive is a 27T then the overdrive is 2.5X
or a huge one.. no cables.. ankle button in crank center shifts sideways.

then the BB shell just needs an edge chamfer for either .

Last edited by fietsbob; 05-03-12 at 12:19 PM.
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