Bike Rear Derailleur, High Precision Metal Bicycle Rear Wheel Derailleur, 21/24 Speed for Road, Mountain, and City Bikes

• ♦ COMPATIBLE: The mountain bike rear derailleur is compatible for 6, 7 and 8 speed powertrains. Easy and convenient to install, suitable for 21/24 speed mountain bikes.
• ♦ SWITCH ACTION: Tension spring and low friction fluorine coated connecting rod pivot bus leads to slight switching action.
• ♦ CONVENIENTLY: Light motion control and oversized pulleys are provided for you to choose from a variety of gear positions.
• ♦ SUPERIOR MATERIAL: Constructed with great quality metal, anti-rust, wear-resistant, for years of use.
• ♦ GUARANTEE: If you are not satisfied with our product received, you can apply for unconditional return and refund within 180 days. In terms of any problem of this product, you can send emails to us at any time. We will reply you as soon.

Features: 1. COMPATIBLE: The mountain bike rear derailleur is compatible for 6, 7 and 8 speed powertrains. Easy and convenient to install, suitable for 21/24 speed mountain bikes. 2. CONVENIENTLY: Light motion control and oversized pulleys are provided for you to choose from a variety of gear positions. 3. SWITCH ACTION: Tension spring and low friction fluorine coated connecting rod pivot bus leads to slight switching action. 4. SUPERIOR MATERIAL: Constructed with great quality metal, anti-rust, wear-resistant, for years of use. 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