The Fast Trak GRID 2Bliss Ready T7 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 GRID casing provides a light and supple trail construction with additional sidewall protection for durability and sidewall stability. To top off this build we use our T7 compound to maximize grip and damping. Specialized Fast Trak GRID 2Bliss Ready T7 Bicycle Tire in Black