I'm building a kinda racer engine.
130cc polini mono
24mm reedvalve carbu
but i'm searching for a crankshaft.
Can I use a 24mm/25mm crankshaft without buying a vespatronic of parmakit or...? Does a flywheel from 20/20mm fit on this crankshaft? because I don't see any flywheels with 24/25mm on SIP..
Whitch crankshaft would be the best for my setup?