Originally Posted by
Western Flyer
I combined a Nexus 8 with a
Patterson internal 2 speed crank for an approx. 500% range and 16 speeds on my 20 inch folder. With a range of rear cogs and front chain-rings a reasonable hi and low range is possible for most bikes.
released recently , the Efneo 3 speed geared crankset.
Efneo shop
like the patterson , but 2 over drive ratios rather than one..
1st a 28t, internal 2nd '40t', 3rd '50t' Rather than 28 & '45t'..
In USA whole sale distributor, Merry Sales Imports.
the Efneo uses a common Square taper , separate BB, Patterson incorporates it's own..
the Schlumpf IG cranks also incorporate the BB, but they avoid a cable shift lever in the process..
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