close-up of different components of old motorcycle clutch ,alternating layers of fiber friction disc and steel clutch plates clamp

clutch gear alternating layers fiber friction disc steel plates clamped pressure plate springs motorcycle repair garage shop mechanical work clutches roller leather belt engine rear wheel bikes automatic transmission crankshaft driven metal hub basket maintain cutch drive shaft sandwich pull transportation engineering maintenance mechanic speed technology machine vehicle tool balancing close components old together clamp close-up car iron tire bumper rim