The Minion DHR II is a complete redesign. Acceleration, cornering and braking have all been improved TR - Tubeless Ready - sealant required DD - Double Down construction features two full 120 TPI casing layers reinforced with a butyl insert WT - Wide Track casing optimized for rims over 35mm internal width Tubeless 29x2.4 622 TBLS - Fold Bk/Blk 65 120 DD/TR/WT NoUPC/EAN/GTIN: 4717784034386