Lower pulley: LW-UT/105 (18T), 6800 (17T)
Model: UT/105/6800
Packing:1 pc Bicycle Ceramic Bearing
Color: As Picture
Type:Bicycle Ceramic Bearing
Material: carbon fiber
Upper pulley: LW-UT/105 (13T), 6800 (16T)
Features:
1. Effectively increase chain power inertia
2. Reduce chain friction and make the chain stable
3. Strengthen the safety of the rocker support structure
4. The speed is stable and fast
5. Reduce the sound
6. Smooth output riding efficiency
7. Climbing, effortless, effective increase in cadence
8. Using all ceramic non-resistance bearing, friction power consumption is reduced