Stroker Crankshaft, + 2.2 mm stroke (Genuine, GY6)

Forged performance crankshaft increases the stroke length distance of the piston, giving more power on every stroke. This Crankshaft requires a spacer between the case and the cylinder to create enough clearance betwwen the head and piston this crankshaft is an advanced installation - requiring your crankcase to be bored to a larger diameter to accommodate this product. Make sure you know what you're doing or have a professional machinist or mechanic do the work for you!