Wide ramped knobs down the middle provide control under braking and L-shaped side knobs assure support when carving loose turnsDesigned for XC riding and hard pack trailsTERRA - 3C Maxx Terra is softer and offers more traction than 3C Maxx Speed, yet provides better treadwear and less rolling resistance than Maxx GripSS - SilkShield offers bead to bead puncture protection covering the tread as well as the sidewallsEXO equipped models feature Maxxis` EXO sidewall protection which helps prevent puncture from sidewall abrasionsTR - Tubeless Ready - sealant requiredTubeless27.5x2.8584TBLS - FoldBeltedBk/Blk35885120TERRA/SS/EXO/TRNoUPC/EAN/GTIN: 4717784032467