1. 9/10/11S road bikes in the middle of the chainring

2. The chainring is 3MM aluminum, the crank AL-6061-T6 has good strength.

3. The middle-through chainring is lightweight and easier to ride.

4. Light pedaling and not easy to fall off.

5. CL: 50mm

6. BCD: 110mm

7. Q-FACTOR: 155mm

8. Chain line: 50mm

9. B.B.Axle: 2497mm

一、9/10/11S公路车中通牙盘

二、牙盘3MM铝材、曲柄AL-6061-T6强度好

三、中通牙盘轻量化 骑行更轻松

四、踩踏轻便 ，不易脱落

五、CL:50mm

六、BCD： 110mm

七、Q-FACTOR ：155mm

八、 Chain line:50mm

九、B.B.Axle:2497mm