I got some time..... - Page 3 - Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum
Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum
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Old 01-04-2012, 11:11 PM   #21 (permalink)
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Originally Posted by rubiranch View Post

Provided that the ATV is physically traveling at the same speed.

If you are turning 4000 rpm and the speedo shows 40 mph with let say 25" tall tires and you install 28" tall tires and the engine is turning 4000 rpm and the speedo registers 40 mph the ATV will be traveling faster than 40 mph due to the increased circumference of the tire. With 25" tires the ATV will travel 78.5" every one tire rotation and with 28" tires it will travel 88". The speedo has no idea what size tires the ATV has.

The ATV will travel farther than the odometer registers and will be traveling faster than the speed registers. 9% in this case.

If the speedo registers 40 mph with 28" tall tires the ATV will be traveling at 44 mph.
If the speedo registers 55 mph with 28" tall tires the ATV will be traveling at 60 mph.
rubi that is the best explanation i have ever herd on this spedo big tire thing and im gona save it for the future ...
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Old 01-05-2012, 07:34 AM   #22 (permalink)
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rubi that is the best explanation i have ever herd on this spedo big tire thing and im gona save it for the future ...
thanks Rich
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