【Centerlock Structure】The central lock design of BUCKLOS ensures that the disc is not easily detached and has good braking performance. 【Stainless Steel Material】BUCKLOS Center Lock Rotor is made of sainless steel.It not only has high stiffness and strength, but also has good heat dissipation performance and wear resistance. 【Easy to Install】We are equipped with an aluminum alloy center lock cover.The lock cover is installed using a 44mm wrench, which is simple and convenient 【Quiet braking】Six fixing screws keep the rotor stable and quiet braking. And suitable for cycling in various weather, dry and humid environments 【Compatible with most bike】Bucklos centerlock rotors have 140mm、160mm、180mm、203mm different size for your choice ,ideal for your mountain bike, road bike, electric ebike,fat.