Features:
1.High-precision and high-strength, using 7075 high-strength aluminum alloy, high-precision CNC integrated milling and cutting into environmentally friendly anodized black surface treatment.
2.High adaptability and strong compatibility. After the extension of the tail hook is installed, the rear derailleur and the large teeth have sufficient space and long speed. Compatible with mountain 40/42/46/50/527, highway 34/36/40/42T and other flywheels .
3.180g weight, light weight, reduce your riding burden.
4.Hollow lengthened design, lightweight and beautiful. Scenic line on the cycling road.
5.Essential items for cycling enthusiasts to create a more perfect bicycle.
Notice:
Actual color may be slightly different from the image due to different monitor and light effect
Please allow 1-3mm deviation due to manual measurement  
Description:
Size 6.5 X 3 X 1cm

Package List:
1 x Riding Accessories