Direct replacement fits 1 inch standard crankshaft, built-in square key and set screw. This clutch compatible with most for Mini Bikes and Go Karts or Lawnmowers equipped with 40 or 41 chain. Pls use engine crankshaft diameter and chain size to choose the clutch you needed Thermodynamically designed clutch shoe increases the clutchs capacity to absorb heat without damaging the clutch springs, ensures a longer life and reliability. Please check picture and description before placing order. Feel free to tell us via Email if any quality problem or dissatisfaction occurs. Engineered to reduce failures. Quality tested for trouble-free performance. Quick and easy installation.
Specification:Material: IronClutch: 1 inch Shaft Bore 10 ToothCompatiable Chain Size: 40 or 41 Keyway: 1/4 inchDrum Thickness: 1-3/10 inch Fitment: Go Karts, for Mini Bikes,LawnmowersPackage Includes:1 x Centrifugal Clutch (Set screw not included)