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||170/175mm Al7075-T6 100% CNC|
|Chainring||SSF-01 1/2'' *1/8*18T|
|BB||ISIS Drive 128mm/M12|