[Size]: 48T, 170mm crank, 130BCD, 1x. 【Material】: As a good upgrade substitute for bicycle maintenance. This product is made of aluminum alloy 7075-T6, which has excellent strength and corrosion resistance. [Appearance]: Full CNC machine polishing production, dot hollow design. The overall color is the same, simple and fashionable, strong and durable. 【Compatibility】: Often used for urban folding bikes, fixed gear bikes and other single speed vehicles. Compatible chain size 1/2"*1/8", pedal installation size 9/16". [Easy to install]. The package includes a fixed right crank sprocket and an independent left crank. And suitable for most single speed bikes, save installation time and meet your daily commuting use.




Color: ‎Silver
Package size: ‎30.1 x 22.1 x 4.1 cm; 730 g