This highly efficient narrow/wide chainring will grip the chain perfectly, prevent chain drops.7075 aluminum alloy T651 heating treatment. Light weight but also high strength.Precision machining and anodic oxidation electroplating, keep surface smooth, bright color, not faded and corrosion resistance. 4mm chainring thickness to ensure no flexing.We will ship from real UK warehouses,dispatch in 0-1 day,fast and efficient shopping experience, as well as brand quality assurance for you. ★★★Chainring description: Brand: SNAIL Material: 7075-T6 Aluminum alloy Size: 32t, 34t, 36t, 38t Compatibility: 8,9,10,11,12 speed chain Bolt Center Diameter: 104mm BCD Thickness: 4mm Shape: Round/Oval Fit for MTB Bike,XC/Off Road/AM bike modified single chainring,Fit SRAM/FSA/Prowheel 104bcd crank.Please mak.