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Old 04-24-2014, 04:06 PM
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Greg58 Greg58 is offline
Motorized Bicycle Elite Member
Join Date: May 2011
Location: Newnan,Georgia U.S.A.
Posts: 2,621
Default Re: Bought bottom end from Boy Go Fast, should I be worried?

I wouldn't worry about the stroke at all, if you are like most people here a good riding and fairly dependable bike is what you want. A basic engine with just a few upgrades will scare you on a bicycle! When you get it you can measure the piston from bottom of skirt to the top of the pin to see what the stroke is, the 38mm stroke piston should be 15/16. The picture below is from piston bikes web site.
Your results may not be the same,Greg

Last edited by Greg58; 04-24-2014 at 04:12 PM.
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