A do-it all, bombproof wheelset includes a 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 Upgraded to a 44mm ratchet rings and offer compatibility with Shimano HG, SRAM XD/XDR, Shimano Micro Spline and Campy Ekar 13 speed The "44" hub has been updated to include a slipfit system to easily swap out end caps to accommodate, 15mm,12mm or QR axles, helping you "future-proof" your wheelset With an internal width of 24mm, these are ideal for 3642mm tires and compatible with up to 54mm Alloy tubeless wheelset weighs 1475 grams Built using 24 front and rear patented PBO spokes that can handle any terrain you will encounter on your next gravel adventure Rear wheels with the HG 11sp road FH body require the 1.8mm spacer (included) for use with Shimano/SRAM 811sp HG mountain cassettes Rear wheels with the XDR driver require the 1.8mm spacer (included) for use with XD cassettes Spinergy designed Hadley aluminum freehub body Rim dimensions: 24mm deep 24mm internal Included: rim tape and truing tool