[suicideneil]

The trouble with the Novak motors is they need to be geared down a ton, which means a large spur and tiny pinion- I use 70/12 (32p). That 40tooth MOD1 gear is the same size/equivelant of a 50tooth 32p gear.... you see the problem. My suggestion is to either hunt down some larger compatible MOD1 gears on towerhobbies or somewhere which will work with the Revo type slipper, or switch to the new Emaxx 3905 spurs that are 32p and will work perfectly with the revo slipper; that ofcourse means you will have to buy new 32p 5mm bore pinions.....