*Full CNC machined from 6061T6 Alloy.
*Flatland specific in 18T, 20T & 22T sizes.
*Suitable with micro drive cranks only (such as Colony Colonial Flatland Cranks)
*Fits 19mm spindle
*3mm thick giving the perfect mix of strength & weight for flatland.
*works with 1/8" chains only
*Weight: 21g