The Minion DHR II is a complete redesign. Acceleration, cornering and braking have all been improvedTR - Tubeless Ready - sealant requiredDD - Double Down construction features two full 120 TPI casing layers reinforced with a butyl insertTubeless27.5x2.5584TBLS - FoldBk/Blk50120x2DD/TRNoUPC/EAN/GTIN: 4717784042817