Re: 2nd Build -- Fastest Legal Setup?
I have a jack shaft kit on one of my bicycles... I don't think it will give you the top end speed you are hoping for.
I like it because it lets me climb hills but in the highest gearing it's obvious to me that the bike could go faster but the engine won't permit
With the 200W limiter I would estimate a top speed of 18-20mph (28-32kmh) not pedal assisted