Centrifugal clutch with sprockets No. 40/41/420, 5/8 inch shaft diameter, 10 teeth, suitable for conversions on mini motorcycles/off-road vehicles/karts.

Integrated Pinion Specifications: This product is a centrifugal clutch that integrates #40, #41, or #420 pinions (all three sizes have a 1/2-inch pitch, offering high flexibility). The pinion has 10 teeth, and the output shaft diameter is 5/8 inch (approximately 15.875 mm). The parameters are clearly defined, and the fit is precise. Ready-to-Use, Integrated Design: Integrating the centrifugal clutch and output pinion into a single assembly eliminates the need for separate pinion alignment and installation. This simplifies the assembly of the transmission system and makes it particularly suitable for small-displacement engine modifications. Compatible with Small-Displacement Mod Platforms: Specifically designed for small engines with a 5/8-inch output shaft, it is widely compatible with two- and four-stroke engines (typically 3 to 10 hp) found in minibikes, dirt bikes, go-karts, and some other small machines. Automatic centrifugal clutch: As a centrifugal clutch, it engages automatically and transmits power as soon as the engine reaches a certain speed, and disengages automatically at idle and low speeds. This eliminates the need for manual clutch operation, making it the ideal choice for simplified operation.