06 GSXR 600 Gearing for Summit?

[gixxerzoli]

Hey Guys!
Gearing question....I would really appreciate if somebody /who runs under 1.20s on Summit/ can help me with the 06' GSXR 600 gearing. What should I use?
Last year I ran 1.21s with bone stock bike. Now, motor is still stock but I added a power commander and exhaust.
Thanks!

[Super Dave]

No chassis changes?  I'd keep similar gearing if that worked for you.  If you run out, loose a tooth or two on the rear. 

If you were bumping off the rev limiter before, your gearing was wrong then. 

What were you running for gearing?