650B

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

Specialized's Purgatory GRID tire is the standard bearer for trail tire performance. By applying FE Analysis and our GRIPTON compound to the Purgatory, they've optimized this tread to be fast rolling and to bite hard on loose terrain. Meanwhile, the GRID casing provides the utmost in cut and flat protection at the sidewalls, And of course, the 2Bliss Ready design is the icing on the cake, allowing you to run lower tire pressures and all but eliminate the risk of pinch flats. - Casing: Additional sidewall protection for exceptional durability, plus sidewall stiffness for stability. - Bead: Foldable - Butyl wrapped bead, 2Bliss Ready - Compound: GRIPTON

Riders have been asking for a tire that can enhance speed, while giving them plenty of confidence while cornering. And by lowering the center tread for high speed, yet keeping much taller side knob edges for secure braking and cornering, our Slaughter DH tire is all but guaranteed to get you to the bottom first. Plus, with butyl inserts at the tire bead, we even have you covered against pinch flats when the trail gets particularly rowdy. We've found it proper for rear usage, but it can be ridden as a front too. - Casing: 60 TPI, Dual-Ply - Bead: Wire - Compound: Base 70a / Top 42a - Pinch Protection: Butyl Inserts at bead - 650b x 2.3"; psi 25-50; approximate weight 1160g

The new Slaughter Grid 2Bliss Ready tire has been designed for heavy-pedal, hard-pack riding—receiving vertically stepped knob shapes for more knob core stability and additional biting edges. Fast courses on hard-packed ground require a light, fast tire center to keep speeds high, but must also keep the speed through loose sandy corners and track well under hard braking. For these reasons, we've kept the high shoulder knobs. Our GRIPTON compound, meanwhile, improves high frequency damping, better attaching the tire to the ground over small bumps and rough sections alike. This also means that the low frequencies of the rolling tire deflections pass through unfiltered, leaving no energy to be absorbed and keeping your speed high. Please note that we recommend GRID tires for anyone seeking the utmost in flat and sidewall protection or additional stability. - Casing: 60 TPI - Bead: Foldable - Butyl wrapped bead = 2Bliss Ready - Compound: GRIPTON - 650b x 2.3", PSI 25-50, approximate weight 825g - 650b x 2.6", PSI 20-40, approximate weight 950g - 650b x 2.8", PSI 15-30, approximate weight 1040g

With soft rubber compounds that stick to wet roots and rocks and well-spaced knobs that allow the tire to clean well, this mud-munching tire is made for riders who won't shy away from an environmental challenge--delivering traction in sections that most riders won't consider hiking over! - Casing: 60 TPI, Dual Ply - Bead: wire - Compound: Base 70a / Top 42a - Pinch Protection: Butyl Inserts at bead - 650b x 2.3, psi 25-50, approximate weight 1160g