My first nitro to brushless conversion!

[highflier]

I am just starting mine, I have one of the older mt2 (Probably around 1995 or so)
I already have a MM 5700 setup for it. Maybe I should have gone for 4600, oh well.
I plan to run 3s A123 cells, so the voltage will be closer to a 8-9 cell pack, Any idea what pinion I should run. The mamba has a 3.2 shaft also, you guys just getting a reducer for a 5mm Pinion.

Thanks IN advance, Oh I will be a mixx of onroad and offroad.

Highflier