There are routes covered with razor-sharp flint rock, where the wind is unforgiving, and the destination is far beyond the horizon. For the toughest days of gravel, when winning looks like finishing, Teravail created the Cannonball.
The Cannonball is designed to be a first-choice gravel racing tire — Dirty Kanza, Trans Iowa, Land Run… it’s conquered them all. The directional, tight-knit center tread efficiently decreases rolling resistance while the side knobs increase cornering traction. The center tread’s diamond pattern is optimized specifically for gravel riding and sheds dirt and gravel debris.
- Tubeless-ready for traction and comfort
- The Durable model features a layer of woven aramid fiber reinforcement between the outer rubber and the inner casing for extra protection against abrasion and sharp gravel.
Going tubeless allows you to run lower tire pressures without the added weight of a tube. Lower tire pressure has many benefits, including greater traction, lower rolling resistance over rough surfaces, and decreased risk of a puncture-related flat.
Tubeless-ready rims and tires are parts of a complete system that eliminate the need for tubes by creating an airtight chamber between the rim and tire. Liquid sealant is added to the chamber to fill small punctures and maintain air pressure while you ride.
UST (Universal Standard for Tubeless) is a specific type of tubeless system that dictates the shape of the rim and tire bead. UST rims should be paired with UST-specific tires for best results.