ULTIMATE PERFORMANCE! The Criterium RS improves speed, grip and rolling resistance while providing our legendary control and supple ride thanks to its handmade construction.

CONSTRUCTION: Handmade
Challenge handmade tires combine comfort, performance, and grip in a way other tires can't match. Our handmade tires are assembled step-by-step by experienced craftspeople. High quality natural glues and latex coatings are applied to ultra-supple casing materials like silk, cotton, or polyester. The result is a small-batch tire with a ride feel that is simply on a different level.

CASING: Corespun Cotton 350TPI
Corespun Cotton with thread counts of 320-350tpi is naturally softer and more supple than polyester but is more likely to absorb water so we seal our cotton sidewalls for increased durability.

COMPOUND: SMARTprime
Delivers lower rolling resistance than our basic SMART compound without sacrificing traction or durability. SMARTprime rubber compound forms the basis of our fastest road tires yet.

PUNCTURE PROTECTION: PPS
Our Puncture Protection System (PPS) is a tough, tightly-woven fabric placed between the tread and casing to increase puncture resistance.