This semi-slick tire borrows its tread design from the trail version of the Rekon, but with smaller and shorter knobsMSPD MaxxSpeed is the latest version of Maxxis race compound that utilizes a silica filler to improve speed, wet traction as well as further reducing rolling resistance by 25%EXO - sidewall protection which helps prevent puncture from sidewall abrasionsTR - Tubeless Ready - sealant requiredTubeless27.5x2.25584TBLS - FoldBk/Blk60120MSPD/EXO/TRNoUPC/EAN/GTIN: 4717784042022