【Material】Crank is made of aluminum alloy and Chainrings is made of iron, light weight, stylish, flashy styling, high axial strength and compatibility
【Dismountable】Riveted chainrings. Excluding BB
【Crank】 Length:170MM; Compatible with Axis: length 110MM-113MM; square hole axis (22-68-20.5R)
【Crank】:104/64mm.crank fit Single/Double/Triple chainring,Crank Arm length 170mm, Crank related holes distance 74m,fit 8-12S chains Single/Double/Triple Speed Chainring
【Package Includes】1 x 170mm square crank;1 x 42/32/22T Chainring(set);4 x Chainring bolts(set)