Product Details
Brand: RockBros
Weight: About 66g
Size: 15*8.3*7.3cm
Material: Full Carbon Fiber Frame , 7075 Aluminum Alloy
Bearing: Ceramics
Product Features
1. Lightweight: Carbon fiber derailleur puuleys ultralight for 0.13 lbs
2. Reduce Friction: Save 60% frictional resistance than 11T
3. Smooth: Ceramic Bearings make it smooth and save more than 2.4 watt
4. Durable: Full carbon fiber frame + Ceramic Bearings + 7075 Aluminum Alloy Guide Wheel ( CNC )
5. 17TR7000- Series suitable for: Shimano 7000