The Specialized Butcher Grid 2 Bliss Downhill tyre is recommended for riders who want the best flat & sidewall protection & extra stability. The Butcher Grid 2 Bliss has Sawtooth faces on the tread blocks to increase stability under load & provide additional biting edges. This in turn improves rolling speed as well as control under hard braking & cornering. Specialized’s proprietary Gripton compound improves high frequency damping & reduces rolling resistance so you get a tyre that flows better on both small bumps & rough sections. With the tyre setup & ready to accept tubeless you can run it at even lower pressures without the risk of pinch flats. Once you ride this new butcher you will never want another tyre for your gravity excursions. Casing: 60 tpi bead: foldable butyl wrapped bead = 2bliss ready compound: gripton 26 x 2.3"; psi 25-50; approximate weight 825g 650b x 2.3"; psi 25-50; approximate weight 870g 650b x 2.6"; psi 20-40; approximate weight 960g 650b x 2.8"; psi 15-30; approximate weight 1060g 29 x 2.3"; psi 25-50; approximate weight 890g 29 x 2.6"; psi 20-40; approximate weight 975g