29-Inch

Serfas' Krest folding bead tire will tackle all terrain—hard pack, loose dirt, and mud. Ramped, medium-height knobs in the center offer speed, while tightly spaced lugs all around provide constant traction. It also features Serfas' FPS technology for flat protection.

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