Hi placidsdene......The pedals are not connected to the drive...don't need to be as the engine has 6 speed gear box unit construction....however the pedals are used to operate the rear brake.. the pedal axle has a lever with a ratchet on the (right) brake side..back pedal to stop ....... the pedals can be rotated forward and positioned so that the gear shift (left ) can be operated with left foot ....I havent done anything to the bike lately as I'm still finishing another project maybe another 2-3 months before I get back to finish it...heres a few pics of the crank assembly .... hope you can work out what I have done and how it works.......regards DD