Hub Center Lock Adapter Hubs for 6 Hole Hub with Shield Through Axle Seven Colors Description: High quality aluminum alloy adapter, high strength, anti-corrosion, non-deforming and practical. Easy to install and use. Designed to convert Center-Lock hubs to rotors mounted on 6 screws. CNC machining makes the surface smooth and can prevent damage caused by abrasion. You no longer need any screws/screws to lock the rotors, but it is still solid and stable. Hubs 9/12/15/20mm through Center Lock axis. Easy to install, exquisite workmanship for smooth braking. Specifications: Material: Aluminum Alloy Diameter: 52mm/2.05 inch Screw Distance: 44mm/1.73 inch Fits through axle 9/12/15/20mm The package includes: 1 pc. Brake disc adapter with central lock