Challenge Grifo folding tyre

The all-round cyclocross tyre for wet, dry, soft, stony or root-covered terrain. Handcrafted to the highest quality standards and featuring 300 TPI

Multiple-year cyclocross world champion, ideally suited for professionals and cyclists who love riding in extreme conditions. Incredible grip and no compromises on rolling resistance – that’s what sets the Challenge Grifo Pro Open apart. Featuring a 300 TPI polyester casing and a Puncture Protection Strip, an additional layer of high-strength fabric between the casing and the tyre to reduce the risk of punctures.

Challenge Grifo Pro specifications:

• Road bike tyre 33 mm x 622, foldable
• Casing: Super Poly 300 TPI
• Handmade in Italy
• Ideal for rims with a 17–25 mm rim width
• Weight: 355 grams

Pro Handmade Clincher with Super Poly casing

• Handmade tyres combine a variety of outstanding features to offer maximum comfort and minimal rolling resistance. Carefully selected materials are used in the various tyre grades depending on performance requirements. Soft, supple casings quickly adapt to the shape of the ground when rolling and cornering. This increases ground contact and grip and improves shock absorption on poor road surfaces. Soft, natural rubber treads are combined with lightweight, flexible puncture protection.
• Polyester is the most cost-effective of all hand-built casings. It is a synthetic fabric that is very strong and waterproof, offering significantly greater flexibility and durability than comparable nylon materials. Challenge uses high-quality polyester or SuperPolyl, a polyester with a higher TPI count, to produce cost-effective pro-level tyres.

Handcrafted Natural Rubber – Smart Hardness

• Challenge’s hand-built natural rubber tyres are formulated to offer the perfect balance of durability without compromising on performance, comfort and control. Although Challenge tyres wear out 10–20 per cent faster than the competition’s, they score highly with significantly improved performance and a noticeably better riding experience throughout their entire lifespan. Depending on requirements, the tyres are fitted with rubber compounds of varying softness.

• The Smart hardness grade is the version of Challenge’s natural rubber compounds optimised for a long service life.

Puncture Protection System (PPS)

• The PPS (Puncture Protection System) consists of one or more layers of fabric between the tread and the tyre carcass. PPS significantly increases the tyre’s resistance to punctures, thereby offering maximum reliability.

Herstellerinformation: Challenge, Via Gattamela 41, 20149 Milan, Italy, https://www.challengetires.com