The Ground Control Control 2Bliss Ready T5 uses an extremely versatile tread pattern which can be used from cross country race to trail, it rolls fast with exceptional amounts of confidence and grip. 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. 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. 26 x 2.35", PSI 25-50, approximate weight 670g.27.5 x 2.35", PSI 25-50, approximate weight 720g.29 x 2.2", PSI 25-50, approximate weight 800g.29 x 2.35", PSI 25-50, approximate weight 845g.Bead: Foldable.Butyl wrapped bead = 2Bliss Ready.Casing: 60 TPI, light and durable do it all XC construction Compound: GRIPTON® T5.