TheHope Tech Enduro Pro4 27.5in Rear Wheelsareconventional spoked Enduro/Trail wheels built with the Tech Enduro rim designed and tested by Hope. These wheels are machine built and hand finished in Barnoldswick. Hope Tech Enduro Pro4 27.5in Rear Wheel Features Tech Enduro rim built on the bullet proof Pro 4 Hubs Standard and straight pull hub wheel builds Larger diameter spoke flange, to build stiffer wheel Stainless Steel, sealed cartridge bearings 4 Pawl ratchet mechanism Welded and eyeleted 6061 T6 aluminium rim Triple cavity construction offers excellent strength, yet keeps the weight low Tubeless compatible (requires tape and valves) Black Sapim Race/Sprint stainless steel double butted spokes built with silver Brass nipples Hope Tech Enduro Pro4 27.5in Rear Wheel Specifications Rear wheels supplied with 135mm QR and 142x12 conversions Boost rear wheel option comes built with 148x12 Boost specific hub 11 Spd Shimano, Sram XD and Hope freehub body options available 150/157mm option available (J-bend only) Rim Width: 23mm internal / 28mm external Rim ERD: 27.5” - 562mm Rim weight: 27.5” - 510g Compete standard wheel weights: 27.5" F 943g / R 1053g Complete straight pull wheel weights: 27.5" F 930g / R 1071g