Originally Posted by Nutsplats
I'm running the Team Associated 10R5.1 WGT with a Tekin 13.5 turn RPM motor in blinky mode. The track is pretty big, long straight and lots of turns.
Sounds like LogiMaker's recommendations are good starting points. Depending on how tight the turns are, you might need to add/subtract a tooth or two from the pinion to get the best laptimes, but 85mm rollout and 53mm tires should work.