The Bicycle allocate Products: Change Speed Capacity Key Spare Part,Handle,Flywheel Spare Part Etc. Square Shape are Durability,International Brand And High-Grade Bicycll Are Best Choose.

• 自行车配套产品：变速器关键零件，手柄，飞轮等零件；方型线材之零件耐久性较好，一般国际性品牌高级自行车变速器首选