K138 6/7 Speed Rear Derailleur Direct Mount For Mountain Bike And Road Bike With 36T Capacity Replacement For TY21B Durable MTB Road Commuter Folding Bike Gear
✔️ Direct mount derailleur, 36T capacity, steel/resin build, MTB/road
This 6/7 speed rear derailleur (model K138) serves as a direct-mount replacement for many bikes. It's compatible with MTB, road, commuter, and folding bikes. It features a wide 36T capacity and a durable steel/resin construction for long-lasting performance.
✅ 6/7 speed compatibility with direct-mount design
✅ 36T total capacity for a wide gearing range
✅ steel/resin composite construction for durability
✅ suitable for MTB, road, hybrid, commuter, and folding bikes
💡 What is a direct-mount rear derailleur with 36T capacity used for in MTB and road bikes? A handy upgrade that simplifies installation and improves shifting reliability. - It supports 6/7 speed setups with a broad gearing range - Direct-mount design makes installation quick on many frames - Built from steel/resin for wear resistance and longevity - Helps deliver precise indexing and smooth gear changes