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||170mm( Forged Al6061-T6)|
|Chainring||46/ 48T(Al6061-T6 CNC)|
|Axle||Taper Square 116mm|