The Hope Fortus 26W Pro4 27.5 Rear Wheel has been machine built and hand finished in Barnoldswick. These Fortus 26 rims are built on Hope's bullet proof Pro 4 Hubs. Hope Fortus 26W Pro4 27.5 Rear Wheel Features Standard J-bend hub wheel builds  Larger diameter spoke flange, to build stiffer wheel Stainless Steel, sealed cartridge bearings Welded and eyeleted 6061 T6 aluminium rim Tubeless compatible (requires tape and valves) Black Sapim Race Stainless Steel double butted spokes built with Silver Brass nipples Boost rear wheel option comes built with 148x12mm Boost specific hub Shimano Aluminium, Shimano Steel and Sram XD freehub body options available Hope Fortus 26W Pro4 27.5 Rear Wheel Specifications Internal width: 26mm External width: 31mm Profile depth: 20mm Rim ERD: 562mm Recommended tyre width: 2.25” - 2.5” Spoke count: 32 Rim only weight: 27.5” - 545g