Trials
Well-known member
That part is ridiculous and they do that for a reason too. It's so the bike doesn't tilt in on acceleration through corners and my K bike does that too....
However, in an R-bike, the flywheel and tire are spinning transversely to each other. You will get power loss either way from a shaft or chain. Whether it happens at the flywheel or rear axle is academic. More weight penalty from a shaft than a chain.
Now you are going to tell me BMW's are heavy :/ what else is new, when I was 10 years old I thought they were ridden by giants.