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Going from 2.75r10 to 3.0r10 front tire?

Posted: Sat Jun 26, 2010 9:13 pm
by gixxer9
Does anybody have any experience with going from a 2.75 to 3.0 front tire? If so, how substantial is the speedometer error?

I'm going to be installing a 90/90 on the rear soon and wish to install the matching tire on front, but am having a hard time finding a 2.75 and 90/90 of the same model outside of the Kenda K329 tire.

My ride is an 87 elite that came factory with 2.75r10 front and rear according to the repair manual.

Thanks!

Re: Going from 2.75r10 to 3.0r10 front tire?

Posted: Sat Jun 26, 2010 10:25 pm
by odinxxix
i think wheelman posted that it was about 3% but i could be wrong. thats if it will fit with out rubbing

Re: Going from 2.75r10 to 3.0r10 front tire?

Posted: Sat Jun 26, 2010 11:11 pm
by martynkim
I tried it. I lost 3 mph on the speedo.

Re: Going from 2.75r10 to 3.0r10 front tire?

Posted: Sat Jun 26, 2010 11:29 pm
by gixxer9
odinxxix wrote:i think wheelman posted that it was about 3% but i could be wrong. thats if it will fit with out rubbing
I estimated about 3% from some O.D. numbers I found at kendausa.com, but they were different models so it was a low accuracy guess; no idea about the rubbing...

Re: Going from 2.75r10 to 3.0r10 front tire?

Posted: Sat Jun 26, 2010 11:31 pm
by gixxer9
martynkim wrote:I tried it. I lost 3 mph on the speedo.
3 mph is substantial. Was that difference at top speed, or uniform throughout the powerband?

Are you still running the 3.0 on front or did you go back to 2.75?