Number of 5 Speed Teeth: 14, 17, 21, 24, 28T. Hardening Technology: The bike flywheel is made of high strength steel, which adopts hardening technology and has greater wear resistance and durability.
The Bike Freewheel 14-28T 5 Speed Flywheel is a great upgrade for serious mountain bikers looking to improve their speed, efficiency, and control while climbing.
