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Old 05-31-2008, 06:42 PM
zebratruck's Avatar
zebratruck zebratruck is offline
Motorized Bicycle Newbie
Join Date: May 2008
Location: Pittsburgh, Pa.
Posts: 8
Default Re: Speedo's and gas engines...Help !!

if you want an accurate speed from your bike computer, do a roll out measurement and enter that # in mm into the computer. Air valve @ 6 o'clock, you on it with tires pumped up, roll one wheel revolution until the valve is @ 6 o'clock again, measure in mm. Most every modern cycling computer will let you enter a custom # for a more accurate speed.
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