Mountain Road Bike Bicycle Rear Wheel Derailleur Gear for 21 24 Speed Bikes Replacement Part

Features: Light motion control and oversized pulleys are provided for you to choose from a variety of gear positions. The mountain bike rear derailleur is compatible for 6, 7 and 8 speed powertrains. Tension spring and low friction coated connecting rod pivot bus s to slight switching action. Constructed with good quality metal, anti rust, wear resistant, durable for years of use. Easy and convenient to install, suitable for 21 24 speed mountain bikes. Specification: Condition: Brand New Material: Metal Color: Black Package Weight: Approx.300g 10.6oz Fitment: for 21 24 Speed Mountain Bikes Package List: 1 * Rear Derailleur