The Fast Trak Control 2Bliss Ready T5 has become synonymous with fast and lightweight tires that are able to handle the most technical courses and the most grueling conditions. This model redefines what was thought possible with a cross-country tread design. Our Block-In-Block design uses a taller adaptable inner block to pierce the ground and claw for traction. The larger outer structure supports the inner block for additional speed, traction, support and stable handling. Adding to this, the Fast Trak profile and knob spacing has been optimized for a wide variety of internal rim widths. The Control casing is our light and durable do it all XC construction. To top off this build we use our fastest rolling, race ready T5 compound with excellent wear and tear protection.Key Features:Casing: 60 TPI, light and durable do it all XC construction,Bead: Foldable.,Butyl wrapped bead = 2Bliss Ready.,Compound: GRIPTON® T5.,29 x 2.2\", PSI 25-50, approximate weight 625g.,29 x 2.35\", PSI 25-50, approximate weight 670g..