Valorcielo 17T Road Bike Bicycle Carbon Fiber Rear Derailleurs Deep Tooth Ceramic Bearing Jockey Pulley Wheel Set for Shimano 6800 6870 9000 9070 Ultegra Dura Ace (Red)

الوصف

Features: Gears: 11 speed Weight: 58 grams ( 0.13 pounds) Lightweight:Carbon fiber derailleur puuleys ultralight for 0.13 lbs Color: Black,Red, Blue,Golden,Purple Reduce Friction: Save 60% frictional resistance than 11T Smooth: Ceramic Bearings make it smooth and save more than 2.4 watt Durable: Full carbon fiber frame + Ceramic Bearings + 7075 Aluminum Alloy Guide Wheel ( CNC ) Suitable for Shimano 6700 6800,6870,9000,9070 Ultegra or DURA ACE guide wheel group