cougar sv2 gearing for a 7.5?

[Pulse]

Hello,

I will receive a reedy sonic 7.5 motor very soon and have no idea of what would be a good gearing to begin with for these tracks

MBV Kampenhout
http://www.youtube.com/watch?v=P_74HhqAkq4

BPT Merchtem
http://www.youtube.com/watch?v=DHQ5JHLlv_Y

Here is my buggy , do you have any suggestion?

[paulc]

If you the Schumacher site at the set up's Grant Williams has put his set up from Belguim gp gearing 76/25

[mw02veg]

That's correct

[Pulse]

Thanks! I'll try this to begin with