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Old 11-27-2012, 08:56 AM   #21
GAS GUY's Avatar
Joined: Jul 2007
Location: Garden City, Michigan
Oddometer: 3,653
Originally Posted by FlyingDutchman View Post
Won't the front wheel cause the odo/speedo to be off by 20% 10mpg?
Im not sure , you may be right,but it sure dont seem like 20 % judging by the ride to work.
Until I get a good check against the gps I wont know.
I did compare the speedo to the gps on a few rides and it seemed to be about 10%.
The 19" tire probably has a taller sidewall than the 21" tire,so that may make up for some of the wheel size.

EDIT: Found a conversion calculator online and it appears to only be a 4 % change.
I also remember the speedos are off anyway even with the stock wheel,but I believe the Odo is pretty accurate.So 4% seems right.
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GAS GUY screwed with this post 11-28-2012 at 06:12 AM
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