The Hope Fortus 23W Pro4 29ER Rear Wheels are built and hand finished in Barnoldswick. Built on Hope's bullet proof Pro 4 Hubs. A Fortus 23 rim combined with a standard J-bend hub wheel build. Hope Fortus 23W Pro4 29ER Rear Wheel Features 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 Rear wheels supplied with QR and 142x12mm conversions Shimano Aluminium, Shimano Steel and Sram XD freehub body options available Hope Fortus 23W Pro4 29ER Rear Wheel Materials Internal width: 23mm External width: 27.5mm Profile depth: 17mm Rim ERD: 604mm Recommended tyre width: 2.0” - 2.35” Spoke count: 32 Rim only weight: 29” - 450g