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Old 05-17-10 | 04:53 PM
  #63  
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tcs
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Joined: Mar 2007
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From: Parts Unknown

Bikes: Mike Melton custom, Alex Moulton AM, Dahon Curl

Originally Posted by Mike Mills
The gearing on the five speed version is a bit whacked...
If it is possible to switch to...
So just put a smaller chainwheel and/or larger sprocket on it. No big deal, not expensive. IIRC the crank will take a 38T chainring and 23T cogs for the hub are available: that's something like a 28-71 gear inch range.

What is up with the Sturmey-Archer 8 speed hub? The lowest internal ratio is 1:1 and it goes up to 3.25:1. That's like a 52 X 5!!! It takes something like a 32 X 24 to get low gear down into the realm of a truly useful low gear.
29" wheels on a mountain bike?? That'd make the gearing so high you couldn't climb!

Uh, not really. They just have smaller chainwheels to lower the gearing.

Those Moulton bikes use such small wheels the rider must have to pedal like crazy!

Uh, not really. They use bigger chainwheels and smaller cogs and just raise the gearing.

Lowest ratio on that IGH is 1/1! That would make the gearing too high!

Uh, not really. Just use a smaller chainwheel.

HTH,
tcs

Last edited by tcs; 05-17-10 at 05:22 PM.
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