Chain & Sprocket Swap
#21
thanks man. i bought a used f4 off of a guy and i tried just about everything to get it back to original but just couldn't get it clean. it has kind of a film on it and some tar all up by the rear shock and the motor looks ok but it could use some cleaning too. this is def. cleaning it up to look like new is my number one "mod" to do this winter. thanks again.
#22
#24
#30
Vortex sprockets are good, but stay away from aluminum unless you're building a race bike. Alu wears out too quickly for it to be worth your streeability loss.
For chains, EK, RK, DID, Regina are some of the better brands