650B

Specialized's Ground Control GRID is an exceptionally versatile trail tire. CAD engineered knob shapes strengthen knob structure for optimum braking and traction, but keep knob surfaces adaptable for best ground control. The GRIPTON compound helps make this the perfect choice for epic trail rides in any condition. Specialized recommends GRID tires for anyone seeking the utmost in flat and sidewall protection. - Bead: Foldable - Butyl wrapped bead, 2Bliss Ready - Compound: GRIPTON - 650b x 2.1" psi 25-50; approximate weight 680g - 650b x 2.3" psi 25-50; approximate weight 740g - 650b x 2.6" psi 20-40; approximate weight 915g - 650b x 3.0" Max Ride 25 psi / Max Install 35 psi; approximate weight 1000g

The Ground Control Grid 2Bliss Ready T7 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 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. - 27.5 x 2.35", PSI 25-50, approximate weight 800g. - 27.5 x 2.6", PSI 25-50, approximate weight 850g. - 27.5 x 3.0", PSI 25-50, approximate weight 1050g. - 29 x 2.2", PSI 25-50, approximate weight 820g. - 29 x 2.35", PSI 25-50, approximate weight 845g. - Bead: Foldable. - Butyl wrapped bead = 2Bliss Ready. - Casing: 60 TPI, light and durable XC/Trail construction with additional sidewall protection and stability. - Compound: GRIPTON T7.

Specialized's Hardrock'R is a long-lasting tire with an aggressive, yet smooth-rolling tread with multi-directional knobs that are sure to improve traction and cornering over mixed terrain. And with the added benefit of its Flak Jacket flat protection, you'll be sure to hit it all with confidence and control. - Casing: 30 TPI - Bead: Wire - Compound: 70a - Flat Protection: Flak Jacket - 26 x 2.0"; psi 35-65; approximate weight 880g - 650b x 2.0"; psi 35-65; approximate weight 960g - 29 x 2.0"; psi 35-65; approximate weight 1000g

Specialized's Nimbus Sport Reflect tire has a smooth tread that rolls fast and serves as the perfect fit for any rider looking to get around town. There are many widths to accommodate different models, riding styles, and comfort levels, while the BlackBelt flat protection adds confidence for riding over rough city roads and bike paths. For an extra touch of protection, this model includes reflective accents that increase your visibility to motorists in low-light conditions. - Casing: 60 TPI - Bead: Wire - Compound: 70a - Flat Protection: BlackBelt - 650B x 2.3"; psi 25-50; approximate weight 800g