Description:

Model: UT/105/6800/5800
Upper pulley: LW-UT/105 (13T), 6800 (16T)
Lower pulley: LW-UT/105 (18T), 6800 (17T)

Difference：

1.Bearing：

LW-UT/LW-105 :Ceramic Bearing

2.Surface Gloss

LW-UT/LW-105 :Gold Plated Surface

UT/105: Normal Surface

The use of reinforced carbon fiber board provides higher stability.

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