UK 0-1 day dispatch√48h Delivery at the earliest Feature: * Fit for MTB Bike,XC/Off Road/AM bike modified single chainring. * Single/Double/Triple chainring; for 7/8/9/10/11S chainring * Better after-sales service,we will reply you within 24 hours! * Ship in 0-1 day and reach the delivery within 1-3 working days generally. Crank description: Brand: BUCKLOS Crank Arm length: 170mm Material: 7075-T6 Aluminum alloy Compatible: Single and double, Triple chainring Bolt Center Diameter: 104mm BCD Weight: about 541g (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: 30T,32T,34T,36T,38T,40T,42T Compatibility: 8,9,10,11 speed chain Bolt Center D.