No problems, told the p85 kid the same thing: move the goalposts. Kid kept saying "not enough power"
I've moved the goal posts many times on my projects just to get something finished. If you look hard enough I started posting here trying to make a series hybrid e bike with a huasheng 142. I have a giant mtb frame ( size not brand) and made mounts for the generator before I gave up and threw a two stroke on it. Took the two stroke off it because on clearance issues with the chain stays. Got it running though. You'll find that build too. I got the mtb running good as a regular bike though. Still a massive frame but the fit is dialed in.
The shifter bike I'm working on needs the final chain cut and a problem with the seat fixed but its basically done.