Originally Posted by James_1
I have heard that the engine speed on a bike is reduced before it goes into the gearbox. Is this correct? Also, how much is it reduced? I am trying to work out what needs to be done to fit a bike engine in a car and what FD I would need.
The primary drive from crank output to clutch input usually has different sized sprockets. Precise details of tooth ratios are not within my personal knowledge. Not all bikes are configured the same, e.g. a BMW K100 runs a Borg and Beck single plate clutch attached to the flywheel in similar fashion to cars.