Re: Jackshaft Kit U-bolts
That is correct.
The guy who took his face off, was just using the standard fixed drive, Chinese engine kit.
In my opinion the SickBikeParts kit actually adds saftey to motor bicycling because if you are in a situation where need to accelerate to get out of the way, you can just upshift a few gears and put yourself in a safe place.
In city traffic this has helped me many times and with the trailer it is an absolute necessity.
With fixed drive you wouldn't even get moving.