Hg 12 Speed Cassette Lightweight Mtb K7 12-Speed 11 42T 44T 50T 52T Sprocket 12V 42 44 50 Mountain Bike Flywheel

High-concerned chemical：None Type：MTB Bike Freewheel Flywheel Adjustable Gear Number：12 Material：aluminum Gear Teeth：11T Freewheel Speed：12 Origin：Mainland China Components：Freewheel

High-concerned chemical: None Type: MTB Bike Freewheel Flywheel Adjustable Gear Number: 12 Gear Teeth: 11T Freewheel Speed: 12 Origin: Mainland China Components: Freewheel