GO KART Clutch Kit – This torque converter fits all engines with a 3/4″ straight crankshaft,replacement for Mini Bike Go Kart.The 3/4″ drive clutch contains a 12 tooth sprocket for #35 chains Specifications – Shaft:3/4″;Tooth:12;Fit:#40/41/420 Chain Features – This Go Kart Converter Kit is made of high quality iron and aluminum, which is sturdy and durable.And the clutch will help you get more power from a small engine by reducing the engine load Suitable – Torque Converter kit is used in go karts, ATV,mini bikes Package Includes – 1 x Centrifugal Clutch;1 x #35 Chain What makes our products unique is a comprehensive enterprise focusing on research and development of high-quality auto parts.We provide a variety of high-quality auto parts products.Our products have been inspected and tested many times before leaving the factory. They match OE in form, assembly and function. Why did you choose to trust us We would provide 180 days return and exchange services if