CAT SX PINION GEAR?

[styleone]

I am about to run a 3900kv Reedy system in CAT SX Lipo chassis, mostly on grass and astro. Any suggestions for pinion gear setup? Was gonna go for 22t with stock spur

All thoughts much welcome

:)

[Rob_B]

Would say thats about right mate i run a v3 5.5 on 22/83

[styleone]

Hi mate, nice one for that post..I thought it would be a fair balance. Thanks for taking time to post

best wishes