Note:The Crank is compatible with single and double speed chainring,not only high compatibility,and ultralight,with high strength axle.Narrow wide chainring will grip the chain perfectly, prevent chain drops, and they both are made of aluminum allo,CNC machining.We will ship from real US warehouses,fast and efficient shopping experience, as well as brand quality assurance for you. Crank description: Brand: BUCKLOS Crank Arm length: 170mm Material: 7075-T6 Aluminum alloy Compatible: Single chainring Bolt Center Diameter: 104mm BCD Weight: about 500g (right & left) Color: Black Advantages: Light weight,stylish appearance,very cool,high strength axle,strong compatibility. Chainring description: Brand: SNAIL Material: 7075-T6 Aluminum alloy Size: 30-42t Compatibility: 8,9,10,11,12 speed cha.
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