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

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.