Originally Posted by wayne z
What is your overall drive ratio? By the looks in the pics, it seems that your ratio is way too tall. Not sure, but I think this motor needs about 17 or18: 1 for decent performance.
"Too tall" would be an understatement. It would not move me on the bike no matter how much gas I gave it. I tossed the jackshaft mount in the trash and ordered a 56T sprocket. I then removed the rear disc brake and am relocating it to the front tire. How good or bad is the Grubee 4G belt drive? That's what I'm looking at now.