I didn't see that ratio in the manual, but then I didn't finish building the car yet! haha
I installed the 85t spur when building because the kit gearing is for the kit 540 motor. Even with the larger spur I thought it might be a little over geared so something smaller than the kit pinion might be in order.
I'm not really the best person to advise since I have the gearbox built and thats about it..
