Upgrade your bike's rear derailleur with this set of 2 high-quality derailleur hangers from Professional Bike Tail Hook Factory. Made from alloy aluminum with T4+T6 heat treatment for superior strength and durability, these hangers are designed to fit Trek Remedy, Liquid, Navigator, Gary Fisher, BH Mongoose Schwinn,Mountain Bike Dropout W230026 ,models (#42-8 ). One hanger is intended to replace a broken one, while the other serves as a convenient spare, ensuring you're always prepared for unexpected repairs on the road or trail. With their precise engineering and robust construction, these derailleur hangers will provide reliable shifting performance and peace of mind for your cycling adventures. Keep a set on hand for seamless maintenance and uninterrupted riding enjoyment.