For 2021, The Z32 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 new Z32 features a 32mm deep matte alloy rim paired up with our Aero bladed PBO spokes for quick response and acceleration. This light weight alloy wheelset is great for climbing and sprinting. At 19mm internal, the Z32 wheels pair up great with 25-28mm tyres for quick response and acceleration while maintaining rolling resistance down. Features front 16 and rear 20 spoke Radial/2-cross configuration providing all the performance without sacrificing durability or speed. They are designed to keep the rotational weight down and sustained speed up. Uses 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. Spokes: Aero Bladed Pbo Spoke Count Front: 16 Spoke Count Rear: 20 Lacing Front: Radial /2-cross Lacing Rear: Radial /2-cross Hub-front: Matte Black Aluminum Custom Made Cnc Machined Front Hub Options: 12mm Hub-rear: Matte Black Aluminium Custom Made Cnc Machined, Shimano/sram Rear Hub: 12mm Thru Axle Spoke Colours: Black Rim Style / Width / Depth: Alloy, Matte Black / 19mm-internal / 24mm-external / 32mm Depth Bearings: Stainless Steel, Sealed Extras: Truing Tools Weight: 1635g