Direct Mount: Easily install this derailleur onto your bike frame for a clean and secure fit.;Altus Compatible 7 8-Speed: Tailored for compatibility with 7 and 8-speed drivetrains, offering versatile shifting options.;Quiet Operation: The large guide wheel design minimizes noise and wear, ensuring a smooth ride.;Enhanced Durability: The wide link design increases strength and longevity, even under heavy use.;Smooth Shifting: Engineered to offer seamless transitions between gears, enhancing your cycling experience.;Upgrade your cycling game with our direct mount rear derailleur, built for adventurers who value smooth shifting and quiet rides. Our customer service team consists of experienced, professional, and responsible staff. They will do their utmost to solve your problems and convey our sincerity and commitment. By choosing our products, you choose safety and peace of mind.