Hey I like that differential except it might be heavy. Who makes this? Still deciding. Does the thumb throttle in the picture have the three speed switch? It's hard to see. No matter what I can't imagine not using your controller with the three speeds. Can I get one with a higher amp output?
By the way...I spun the wheel of the bike backwards today and recorded positive regen. amps. Shoulda' thought of that first. Positive proof of regen. Cool. Almost wish I had a non-geared motor just to check it out.

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