Bike Bicycle Ceramic Bearing Carbon Fiber Jockey Pulley Wheel Set Rear Derailleurs Guide Wheel 11 Speed 34T Ultegra DURA ACE

Features:

1. Effectively increase chain power inertia2. Reduce chain friction and make the chain stable3. Strengthen the safety of the rocker support structure4. The speed is stable and fast5. Reduce the sound6. Smooth output riding efficiency7. Climbing, effortle, effective increase in cadence8. Using all ceramic non-resistance bearing, friction power consumption is reduced

90 point

Durable: The bicycle rear derailleur pulley wheel is made of aluminum alloy, carbon fiber and tabua, the guide wheel is solid and durable. Features: to your drivetrain for maximum efficiency and superior reproduction. Wheel bearings reduce friction, giving you lower rolling resistance. The osmo from the wheel bearings to a large pulley will maximize the return on your energy. ❀In the efficiency of the changes: this guide wheel can coincide closely with the fall, reduce the virtual lateral position, shorten the response time of the change and increase the efficiency of the changes. Reduzir or energy consumption by friction: uses palin totally 18 / mico resistance to or sin, reduced or energy consumption by friction.

Please note:

syst for 9100/9150 and 8000 SS/8050 SS are not compatible with Ultegra 8000-GS or 8050-GS (medium cage) derailleur, nor with Ultegra RD RX800 and RX805 equipped with clutches . For compatible RX800 and RX805 versions, please refer to our Shimano RX800/805 OSPWX. For compatible upgrades of Ultegra 8000-GS or 8050-GS, please refer to our Shimano 11s NW pulley wheels.Shimano 9100/8000 OSPW system is compatible with Dura Ace and Ultegra derailleur up to 32 tooth boxesIn the boxComplete 13-tooth/18-tooth system