THE 5-SECOND TRICK FOR BIKE PARTS BMW MOTO

Freehub (Rear Wheel Only) – the part in a modern bicycle’s rear wheel hub that permits the wheel to spin freely when coasting, but engages the drivetrain when pedaling. The cassette slots onto the freehub physique.The crossbar may be the horizontal part with the name which connects The top tube towards the seat tube and in the end is answerable