●Centerlock Type: fit for centerlock hubs. If your brake rotor is traditional 6 bolts rotor, this adapter will let you install it on centerlock hub. ●Material: made by Aluminum and alloy, durable quality and long lifespan. ●All in One Kit: it come with adapter, lockring and spacer. You get everything in one time, it saves money and time. ●Axle: 9mm, 12mm, 15mm, 20mm axles can install. Broadly compatibility. ●2 Years Warranty. Package Content: 1pcs adapter, 1pcs lockring, 1pcs spacer.