Product Dimensions:11.3 x 11.3 x 3.5 cm; 460 Grams Specification: Material: Metal Weight: 464g/16.4oz Variable speed: 6 speed Teeth: 14T-28T Size: 11.3 * 11.3cm / 4.4 * 4.4in Package List: 1 x Bike Freewheel Set Note: 34mm internal bore inch screw thread B1.375-24. Reliable to use, applicable to mountain bike freewheel. High precision thread ensures close connection with the bike hub and smooth operation. It can promise smooth rotation of chain, suitable for chain ring between 14T-28T. Providing fast riding speed with less effort needed. Constructed of high strength metal, anti-rust, non-deformation, wear-resistant, high performance of durability. Reliable to use, applicable to mountain bike freewheel. High precision thread ensures close connection with the bike hub and smooth operation. It can promise smooth rotation of chain, suitable for chain ring between 14T-28T. Providing fast riding speed with less effort needed. Constructed of high strength metal, anti-rust, non-deformation, wear-resistant, high performance of durability.