The Specialized Butcher Grid Trail 2 Bliss Ready Mountain Bike Tyre is latest generation of the World-Cup-proven intermediate tyre. The Butcher GRID TRAIL 2 Bliss Ready, receives an entirely new tread pattern. Wider shoulder knobs better support load under hard cornering, while the biting edges of the shoulder knobs are moved further inside, & the centre blocks have been staggered & spaced better for a smoother transition when leaning the bike over. Meanwhile, Specialized’s proprietary GRIPTON compound improves high frequency damping, attaching the tyre to the ground better on both small bumps & rough sections. The low frequencies of the rolling tyre deflections pass through unfiltered, leaving no energy absorbed & keeping speed high. Once you ride the Butcher, you'll never want another tire for your gravity excursions. Specialized’s new GRID TRAIL casing is stiffer, delivering better handling at lower pressures—all while increasing pinch flat protection by 15% & puncture protection by 30%. Features· Casing: Additional bead to bead protection for exceptional durability, plus sidewall stiffness stability.· Bead: Foldable· Butyl wrapped bead = 2 Bliss Ready· Compound: GRIPTON· 27.5 x 2.3", psi 25-50, approximate weight 870g· 27.5 x 2.6", psi 20-40, approximate weight 900g· 29 x 2.3", psi 25-50, approximate weight 900g· 29 x 2.6", psi 20-40, approximate weight 960g