Quality Wheels Velocity Aileron Disc Rear Wheel - 700 QR x 135mm Center-Lock HG 10 BLK 32HQuality Wheels Velocity Aileron Disc Rear Wheel 700 12 x 142mm Center Lock HG 11 Black. Quality Wheels Velocity Aileron Disc rear tubeless ready wheel. Suitable replacement for entry level to higher end road and gravel bikes. Includes convertible endcaps for Quick release x 135mm and 12mm x 142mm Thru Axle. Sealed Cartridge Bearing Disc Hub Center Lock Disc Includes skewer Professional tubeless tape installation included TECH SPECS Rear Axle 12mm Thru