The tread of choice for our World Cup Downhill Team, the Butcher DH tire excels in the gnarliest terrain imaginable. It does this by featuring fast rolling, ramped center knobs and perfectly sized shoulder knobs for bite in the corners. And with butyl inserts at the tire bead, we even have you covered against pinch flats when the trail gets particularly rowdy. Casing: 60 TPI, Dual-PlyBead: WireCompound: Base 70a / Top 42aPinch Protection: Butyl inserts at bead26 x 2.3": psi 25-50: approximate weight 1250g26 x 2.5": psi 25-50: approximate weight 1290g650b x 2.3": psi 25-50: approximate weight 1270g650b x 2.5": psi 25-50: approximate weight 1370g