The Crank is compatible with single 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 UK warehouses,fast and efficient shopping experience, as well as brand quality assurance for you. Crank : 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 : Brand: BUCKLOS Material: 7075-T6 Aluminum alloy,Titanium plating Size: 30T,32T,34T,36T,38T,40T,42T Compatibility: 8,9,10,11 speed chain B.
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