Gearing at Grattan -- ??

Fearj · 02-27-2005, 10:01 AM

Any recommendations on the best gearing ratio for Grattan on a R6? I'm running 16/48 (3.0 ratio) which seems ok for a fast track, but it may not be the right for Grattan.

I'd like to get a better drive out of the corners and I'll never get into 6th at Grattan. So..I'm guessing I need to lower the ratio <3.0. Is this right?

abtech · 02-27-2005, 10:05 AM

Quote:

Originally Posted by Fearj

Any recommendations on the best gearing ratio for Grattan on a R6? I'm running 16/48 (3.0 ratio) which seems ok for a fast track, but it may not be the right for Grattan.

I'd like to get a better drive out of the corners and I'll never get into 6th at Grattan. So..I'm guessing I need to lower the ratio <3.0. Is this right?

I ran 15/44 on my 929 and currently run 15/43 on the RC. Both bikes are just at the limiter in sixth by the end of the straight. I think you will get sixth gear on the straight easily at 3 to 1.

The front straight at Grattan is 3200+ feet long and you enter it at > 80 mph (middle of third gear for me). Any lower and I think you'll run out of engine.

Fearj · 02-27-2005, 6:21 PM

Quote:

Originally Posted by abtech

I ran 15/44 on my 929 and currently run 15/43 on the RC. Both bikes are just at the limiter in sixth by the end of the straight. I think you will get sixth gear on the straight easily at 3 to 1.

Tks Abtech...out of curiousity what's stock gearing on the 929 or the RC51?

abtech · 02-27-2005, 6:41 PM

Quote:

Originally Posted by Fearj

Tks Abtech...out of curiousity what's stock gearing on the 929 or the RC51?

Stock on the 929 is 16/43 and the RC is 16/40 (along with a very tall first gear . . .).