Hey
you probably need to add a new section for the padals
and in the instructions, you are missing all the part regarding the 12mm bore sprocket, and the assembly of the chain is also not there.
also, does it matter how many teeth the sprockets have?
Thank You this has now been added at steps 42-43. The chain has been added later on.
As for teeth, not really, i went for a 9T lower, 30T upper to you dont have to turn the handle hundreds of times. The guide now states 12T & 30T so you have to drill the bore out on the lower one!