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Old 08-12-2010, 02:56 AM
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BarelyAWake BarelyAWake is offline
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Join Date: Jul 2009
Location: Maine
Posts: 7,212
Default Re: A new shift concept for the engineers....

Originally Posted by LouieMCman View Post
What's the opinions on whether the 3 speed hubs will hold up to say a 5HP motor?
Dunno, it may well be right on the edge... There was quite a bit of debate about the 3 speeds when I first decided to put a worked 66cc through a shiftkit and a Sturmey Archer X-RD3, yet roughly 3000 miles of abuse later it's still workin' as fine as the day it was new *shrug*

I'd give it a shot, newer internally shifted hubs are pretty dang tough, I suspect most of the failures were with old, beaten & neglected hubs and improper shifting techniques, "skipping" between gears due to maladjustment & "speedshifting" (not backing off the throttle while shifting - causing a "slamming" effect on the hub).

What "5HP" engine are you considering?
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