Description
【Bikes crankset】high-strength aluminum alloy crank arm set,strong and durable..【Hollow Integrated crank set】hollow design,Chromium-molybdenum steel for enhanced hardness and rigidity..【Mountain bike Crank Size】crank arm length 170,104BCD Crank set..【Easy installation and compatibility】Compatible with most Bicyle/mountain bike..【Professional Design】Ergonomic structure, super light and super strong,want more control over their bikes.