Going from 2.75r10 to 3.0r10 front tire?

[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!

[odinxxix]

i think wheelman posted that it was about 3% but i could be wrong. thats if it will fit with out rubbing

[martynkim]

I tried it. I lost 3 mph on the speedo.

[gixxer9]

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...

[gixxer9]

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?