The Minion DHR II is a complete redesign. Acceleration, cornering and braking have all been improved 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