The King of gravel has arrived. For 2021, The Spinergy Carbon GXX comes standard with our new and improved hub design, the 44 hub. A Beefier hub with bigger internals, featuring 108 points of engagement, help you generate more torque and transfer of power for out of saddle efforts. We upgraded to a 44mm ratchet rings and offers standard compatibility with 11 speed SHIMANO / SRAM 8/9/10. The 44 hub has been updated to include a slip-fit system to easily swap out end caps to accommodate, 15mm,12mm or QR axles, helping you future-proof your wheelset. The all new Spinergy GXX carbon gravel wheelset features a 24mm internal width for 40mm and wider tyres. Giving you optimal performance with lateral stiffness and improved cornering stability. Built with our patented PBO spokes to reduce rider fatigue, improve acceleration, and a smoother ride. Ready for your long mixed terrain rides and durable enough for your gravel plus adventures. Features 24 front and rear PBO spokes for optimal performance without sacrificing durability or speed. Using our Centre Lock rotor disc mounts and Spinergy\'s exclusive CNC machined design, force-10 tapered hub with strong straight-pull spoke mounting and aerospace grade aluminium axle, rolling on a Spinergy designed HADLEY® aluminium freehub body. Spoke Style: Pbo Size: 700c Spoke Count: F/r 24 Lacing: F/r Radial / 2-cross Hub: Front 12mm Thru Axle Disc: Rotor Mount Centre Lock Hub: 142x12mm Thru Axles Disc Rotor Mount: Center Lock Spoke Colours: Black Rim Style: / Width / Depth Full Carbon Fiber Clincher / 24mm-internal / 29mm-external / 26mm Depth Compatibility: Shimano / Sram 9/10/11 Bearings: Stainless Steel Extras: Rim Tape, Truing Tool Weight Combined: F/r Wheelset 1590g (700c) Tubeless Compatible: Yes