Shenzhen Jiankun Sporting Goods Co., Ltd. was founded in 2012, specializing in the production of bicycle cranks, chain links, cassette underframe and other accessories. We have a complete set of production technology and professionals.
|Crank||165/170/172.5mm (Forged Al6061-T6)|
|Axle||BB24 Forged CrMo|
|Chain line||41.5mm (For 412 Frame)|