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[Semi Pro]

Originally Posted by BrianG

I think you'll end up shearing the second gear engagement pin/pin housing with that kind of motor. And if you think it's hard to control it now when shifting, wait until you get a motor with at least double the torque in there! You'll be lucky to keep it under control.

TBH, if you want to retain the two speed, a 70mm motor (or even a 60mm motor) would be more than sufficient. The lower gearing of first increases torque, and the higher gearing of second gives you the top-end. If a regular XL motor can handle a single speed mod with tons of starting power AND high speed, an 80mm will do it without sweating at all. The only reason for a two speed is to compensate for nitro's lack of torque. Good luck!

that pin sucks i broke it with a 1515 2.5b on 5 cell