Premium Quality: The bike rear derailleur is constructed with good quality metal, anti-rust, wear-resistant, for years of use.
Good Performance: Adopt well machining, smooth running, can move the chain from one sprocket to another with little abrasion to your bike parts.
Great Features: The derailleur can hinge with the chain perfectly without gap to boost speed, save you labor while cycling.
Applicable Occasion: Suitable for 21/24 speed mountain bikes. May be a great replacement for your worn one.
Package Include: 1 x Rear Derailleur. If you are not satisfied with our product received, you can apply for unconditional return and refund within 180 days.