Just finished all the wires for my ego2 36v conversion. I'm now running the stock ego motor on 36 volts through an alltrax axe controller limited to 100 amps. I replaced the brush springs with heavier springs to (hopefully) make firmer contact and reduce heat at the commutator. I've changed the final drive from a belt to chain for easier (and cheaper) gear ratio changes. the final drive is now 14:36, changed from 22:54, just a slight reduction. my first test ride on flat ground yielded 32 mph in less than 10 seconds.