Trail Bikes 108cc Stroker Kit 3 with Race Head for CRF50 Finishing Touches Top that off with the

Top that off with the 3mm larger 20mm performance carb kit to feed the new larger displacement engine

Great for 88cc or larger displacement engines or simply use as a replacement for the stock clutch when it wears out

55mm Stroker Crankshaft Kit

YOSHIMURA RS-2 FULL EXHAUST SYSTEM

Trail Bikes 108cc Stroker Kit 3 with Race Head for CRF50 Finishing Touches Top that off with theThis kit is the complete kit to convert your stock motor into a powerful open class 108cc engine (much more powerful than the common Chinese 107 and 125cc engines). Also this crank was made specifically for the newer engines and thus you will not have any fitment issues like trimming the piston skirts in order to clear the crank or the piston not lining up with the cylinder deck. 51mm Crankshaft with NTN bearings High compression piston with rings,