Originally Posted by
Drtdvl5
I'm thinking about sizing down my spur from stock 87 to 84. I'm running a 20 t pinion. Any insight on increase/decrease performance when spurring down? Not to educated on the gearing side of the hobby.. Thanks
Is there a reason you are going to an 84? Dropping down to an 84 will be close to the same effect as going up one tooth on the pinion. This would result in a very slight increase in top speed/heat. Normally there is a desired result when changing gearing, not just to do it and not knowing what it does...