29-Inch

Tight enough tread spacing for high speed, drag-free onslaughts, yet blocky and tall enough to really dig in when it comes time to slam on the brakes. A rounded profile and staggered, supportive side knobs keep clamoring for traction even as the trail loses its camber. Most often used as a rear tire, the Trail Boss also keeps the front in check on hardpack trails. Want to go out and own it? Be the Trail Boss. Usage: XC / Trail / All Mountain Conditions: Dry to Damp / Hardpack to Loam - 29 x 2.25 TCS Tough/Fast Rolling: 1050g, Dual DNA compound - 29 x 2.25 TCS Light/Fast Rolling: 795g, Dual DNA compound - 29 x 2.25 Comp Tube-Type: 967g, DNA compound - 29 x 2.40 TCS Light/Fast Rolling: 917, Dual DNA compound

This is the #1 tire choice for Tour Divide, the longest mountain bike race in the world, stretching from Canada to Mexico along the Rockies. It features an elevated centerline that rolls effortlessly on hard surfaces, numerous micro-knob working edges providing lateral traction and predictability, and a voluminous casing designed to go the distance. It's no wonder why the Nano is a favorite tire of ultra endurance mega athlete Jay Petervary. Usage: XC / Trail Conditions: Dry to Damp / Pavement to Sand - TCS Light/Fast Rolling: 685g, Dual DNA compound - Race Tube-Type: 575g, DNA compound