Rear Derailleur RD-TY21B For Six Or Seven Speed Bikes Direct Mount Upgrade For Mountain Road Trail Folding And Commuter Bikes With Ride Ready Lightweight Aluminum Alloy 11T Pulleys 34T Max Capacity
✔️ Lightweight aluminum alloy, direct mount, 11T pulleys, 34T max
The RD-TY21B is a direct-mount rear derailleur designed for 6/7-speed bikes, including MTB, road, commuting, and folding models. Its lightweight aluminum alloy body resists mud and water for reliable shifting across conditions.
✅ 6/7-speed compatibility for MTB, road, commuter and folding bikes
✅ Direct mount design (not hanger mount) for quick frame installation
✅ Lightweight aluminum alloy body for durability and light weight
✅ Sealed 11T pulleys for quiet, smooth operation
✅ 34T max capacity to handle wide gear ranges
✅ Color: Black for a clean, low-profile look
💡 What is a direct mount rear derailleur used for on 6/7-speed bikes? This handy setup attaches directly to the frame for easy installation and precise shifting. - RD-TY21B direct mount derailleur is designed for 6/7-speed drivetrains. - Aluminum alloy body with sealed pulleys ensures durability and quiet operation. - 11T pulleys and 34T max capacity optimize gear range for MTB, commuter, and folding bikes.