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Feature

LIGHTWEIGHT:Carbon fiber derailleur puuleys ultralight for 0.13 lbs
REDUCE FRICTION: Save 60% frictional resistance than 11T
SUITABLE TYPE:Shimano 6800,6870,9000,9070 Ultegra or DURA ACE guide wheel group
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 )

Description

RockBros Carbon Fiber Bike Rear Derailleur Pulleys Jockey Wheel Lightweight
Product Details:

Brand: RockBros
Material: Full carbon fiber frame + Ceramic Bearings + 7075 Aluminum Alloy Guide Wheel ( CNC )
Gears: 11 speed
Weight: 58 grams ( 0.13 pounds)
For bike type: Road bike and folding bike above 20"
Fit for Shimano 6800,6870,9000,9070 Ultegra DURA ACE guide wheel group
Color: Black,Red, Blue

Features:

Lightweight:Carbon fiber derailleur puuleys ultralight for 0.13 lbs
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 6800,6870,9000,9070 Ultegra or DURA ACE guide wheel group