Challenge Gravine Pro Folding Tire - Gravel | Handmade | TLR | PPS2 - 40-622 | black/brown

Designed for improved performance and traction across mud and rocky terrain, the Gravine is our ultimate rough conditions tread. Featuring a more aggressive pattern with tall knobs, this tire pushes the boundaries of gravel.

This handmade PRO version combines a supple Super Polyester casing with our durable SmartPlus Compound. 

This Challenge TLR model is hookless rim compatible.

Construction: Handmade | Challenge handmade tires combine comfort, performance, and grip in a way other tires can't match. The 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.

Series: Pro | Everyday Luxury – Our workhorse handmade tire is the PRO series, delivering performance and ride feel unmatched by traditional vulcanized tires. Perfect for the rigors of daily riding.

Casing: Super Polyester 260TPI | Super Polyesters with higher thread counts of 220-300tpi make up the most affordable handmade casings. Polyester is much softer and stronger then nylon, is impervious to water and quite durable.

Compund: SMARTplus | A tougher and more cut-resistant rubber compound for the demands of gravel and rough terrain. SMARTplus wears longer to keep tread edges sharper, improving confidence over mixed surfaces.

Puncture Protection: PPS2 | The tires designed for use on rough roads, cobbles and gravel are built with an additional layer of PPS (PPS2) on the inside of the casing.

 

Note: Tubeless Ready tires require tubeless compatible rims/wheels, tubeless valves, tubeless rim tape and sealing fluid for tubeless mounting. Sealant fluid is not required for tubeless UST tires, but is recommended for increased puncture protection. Installation should only be carried out by qualified personnel.