LYUMO Mountain Freewheel 7 Speed, Chain Sprocket Cassette Mountain Replacement Accessory for Cycling Trail Riding

Description Features: Constructed of high strength steel, anti-rust, non-deformation, wear-resistant, high performance of durability. High precision thread ensures close connection with the bike hub and smooth . It can promise smooth rotation of chain without much noise . Providing fast riding speed with less effort needed. Reliable to use, applicable to mountain bike freewheel. Specification: Material: Stainless steel Weight: 430g/15.2oz Variable speed: 7 speed Size: 11.5 * 11.5cm / 4.5 * 4.5in Package List: 1 x Bike Freewheel Set HIGH-STRENGTH STEEL CONSTRUCTION: Our bike freewheel is constructed using high-strength steel, which is anti-rust, non-deformable, wear-resistant, and highly durable.  PRECISION THREAD DESIGN: The high precision thread design is strategically placed to ensure a close connection with the bike hub and smooth operation.  SMOOTH AND QUIET OPERATION: Our freewheel guarantees smooth rotation of the chain and minimal noise, resulting in a fast riding speed with less effort needed.  RELIABLE AND VERSATILE: Our freewheel is reliable to use and is applicable to mountain bike freewheel, providing a versatile and efficient option for avid bikers.  HIGH PERFORMANCE AND DURABILITY: Our bike freewheel boasts high performance and durability, ensuring longevity and top-notch performance for all biking needs.