Originally Posted by
1Fastpede
It could be wheel hexes rubbing the bearings.
too tight of a belt?(what are the settings)
any type of drag. How far will it roll on the ground with no pinion installed??
depending in the size of the track you may never get it under control with that low of a turn motor.
This is what i have been running for some time now. Granted, i do prefer running a heat-sink and fan for some insurance, but this is a bad a$$ set up! My LRP (i am using a 13mm rotor too) is coming off at 130-150 depending on the day. (summer in Vegas) I did however get the pinion mod to run the other pitch spurs and pinion and am running a 14/62.
Good luck. i think your problem is in the drive train.
JT