The ATC 250R 3um


How many teeth on 85 250R sprockets?

rallyguy

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How many teeth on 85 250R sprockets?
« on: April 26, 2016, 09:10:11 AM »
How many teeth on 85 250R sprockets?

Hello,
what are the standard sprocket sizes for the 1985 250R? I want to be sure they are stock.

Also, if I want to go faster than stock, do I add teeth to the front or rear sprocket?

theredman

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Re: How many teeth on 85 250R sprockets?
« Reply #1 on: April 29, 2016, 09:14:50 AM »
I'm not sure on the stock sprocket sizes but I do know that if you reduce the rear sprocket by one tooth you will gain top speed. If you reduce the front sprocket by one tooth you will gain even more top speed. Less teeth on the front sprocket will make a bigger impact if you are only changing one sprocket.

Remember one thing when you start changing sprocket sizes.... Honda's engineers are brilliant, more brilliant than most. If they recommend a certain sprocket size in the front and rear, they have done so for a reason, probably some intense calculation and design of torque ratios or something like that.