Paolo, are you guys still planning to use the 705 at the Winternats? That would be 6.54 and 5.06 for the final drive ratios respectively.

Question... Why use the short transmission ratio when with the stock internal pulleys and with 15/18 pinions and 49/45 spurs you can also achieve about the same final drive ratios of 6.53 and 5 respectively?

Also, wouldn't it be better to drop down the 1st gear pinion to 15 and use the 50T 1st gear spur instead?

I guess the 2nd gear final drive ratio is about right since that is what is used by Kenji on his MTX-3 at last year's Winternats.

Anyway, I believe when talking about gearing for a particular track, attention should be given also on the tire rollout. I have not raced at the Ft Myers before ( ) but looking at Kenji's setup sheet for last year's Winternats, he used about 61 mm tires with 16/47 (7.42) with 21/42 gearing (5.05). That translates to about close to 38 mm of tire rollout per engine revolution. So since the final drive ratio for the 2nd gear is about the same, you need to start with about 61 mm tires.

Of course, all this gearing talk depends on engine tuning, clutch setup, pipe combo and tire wear !