Quote:

What size front tire do you have?
If you change to a slightly taller one, it will slow the speedo down.
A 110/80 has an 88mm sidewall.
A 100/90 is 90mm.
A 130/70 is 91mm.
But the big change is a 120/90- 108mm, it should slow
your speedo down by 22%.



I think changing from stock to a 120/90 only slows your speedo down about 6% - but hey I've been wrong before

Cheers, Richard
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09 America, Staintune Pipes, K&N, Breathe, Hagon Nitros, AI & O2 removed, tune 20184 (modified), MTX-L a/f gauge