Challenge Elite Pro tubular tyres

Handcrafted road bike tyres from the home of road cycling – absolute top quality.

A perfect tyre for everyday use and training. Equipped with the Puncture Protection System (PPS). Butyl inner tube. The high thread count of the carcass reaches 220 TPI, offering significantly better bike handling. Maintenance is also easier than with tyres featuring a cotton carcass.

Tubular tyres:

The tyres of the pros, offering clear advantages in terms of weight, puncture protection and excellent run-flat performance. The inner tube is integrated into the tyre; the tyre itself is completely sealed, either stitched or glued. The tubular tyres are glued directly to the rims. Consequently, tubular rims do not have a rim flange to hold the tyre in place. This prevents punctures and also allows for significantly lighter rims. The downside is fitting the tubular tyres. Gluing them with tubular tyre adhesive requires a lot of time and experience to ensure the tyre runs true. We recommend Tufo tubular tyre tape. This adheres almost as well as tubular tyre adhesive and fitting is relatively straightforward.

Challenge Elite Pro Tubular Tyre Technology:

• Road bike tyre 25 mm x 622, foldable
• Casing: 220 TPI poly casing
• PPS GANZO puncture protection
• Smart Compound
• Handmade in Italy
• Recommended tyre pressure 5–7 bar, max. 12
• Weight: 295 grams

Challenge handmade tubular tyres:

An art in itself. Exclusively manufactured in Italy. The manufacturing process differs completely from that of a standard bicycle tyre. Each individual handmade tubular requires many stages of meticulous handcrafting. Only the most experienced staff are employed to assemble the individual components using a wide variety of assembly, gluing and sewing techniques.

Per handmade tubular with poly-casing

• Handmade tyres combine a multitude 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 for the intended use. 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 SuperPoly polyester with a higher TPI rating to produce cost-effective pro-level tyres.

Butyl inner tube

• Butyl rubber inner tubes are flexible, reliable and maintain air pressure for an exceptionally long time.

Handcrafted natural rubber – Smart hardness

• Challenge’s hand-crafted natural rubber compounds are formulated to offer the perfect balance of durability without compromising 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.

Ganzo Puncture Protection System PPS GANZO

• The Ganzo Puncture Protection System is a highly flexible, even more tightly woven multi-component puncture protection system integrated between the tread and the carcass. The Ganzo PPS makes the tyre lighter, even more puncture-resistant and preserves the supple, comfortable character of Challenge tyres.

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