Motorcycle One Way Bearing Starter Clutch Gear and Flywheel Assembly compatible with engine models 690 R LC4.Includes part numbers 75032000002, 75040020100, and 75030018150.Designed for use in starter clutch systems to engage and disengage the starter motor from the engine.Features a one way bearing mechanism that allows rotational in while preventing it in the opposite.The assembly integrates with the flywheel to engine starting performance.Constructed to maintain alignment and under operational stress.Suitable for replacement or upgrade in applicable motorcycle engine applications.