Bicycle center axle mountain bike center axle High - grade bicycle centerline bicycle accessories

 

 

 

 

 

 

 

High - grade mountain bike, bicycle using the center shaft, double - peilin design , black coating, waterproof function

It is one of the practical parts of high - grade assembly car.

     Specification: standard 124MM, standard 4 square hole, with safety screw. Bilaterally cranked expenditures are partially symmetrical in length.