The Bontrager Line 40 27.5in Boost 141 MTB Wheel is perfect when it's time to refresh your trusty bike. Trek Genuine Replacement Parts have you covered.Bontrager Line 40 27.5in Boost 141 MTB Wheel FeaturesOriginal equipment replacement Bontrager Line 40 Boost 141 wheelsConvert to tubeless with a TLR rim strip and valve, sold separatelyAlloy double-wall rim with 41mm internal, 46mm external width, 28 holes fr/rIncludes Shimano freehubDoes not include the skewer, reflector, rim strip, valve or owner's manualBontrager Line 40 27.5in Boost 141 MTB Wheel SpecificationsSizeFront, Not applicableRear, Shimano/SRAM MTB/Road 8/9/10-speedFT/RRFrontRearDiameter27.5"27.5"TypeTubeless Ready (TLR)/ClincherTubeless Ready (TLR)/ClincherCassette compatibilityNot applicableShimano/SRAM MTB/Road 8/9/10-speedHub width110 mm141mmHoles2828Butting1414Cross-sectionRoundRoundBrake type6-bolt disc6-bolt discAttachmentThru-axleQuick-releaseNipple locking typeBrassBrassValvePrestaPresta