Challenge Gravel Grinder Pro TLR handmade folding tyre

Not road, not cyclocross – gravel races, i.e. races on gravel, are all the rage and attracting more and more participants. The Gravel Grinder is therefore particularly at home on long distances over unpaved paths. And, of course, in everyday use, which requires a particularly hard-wearing tyre.

The Gravel Grinder is the all-round gravel tyre. It therefore feels particularly at home on long distances over unpaved paths. But this durable tyre with puncture protection insert also performs well in everyday use. The flat tread keeps rolling resistance low, whilst the higher side knobs provide the necessary grip in corners. The folding tyre features a 260 TPI nylon carcass and Ganzo + Puncture Protection 2,

Challenge Gravel Grinder Pro TLR Tyre Technology:

• ETERTO 36x622, 28-inch / 700C
• Casing: 260 TPI Superpoly
• Tubeless Ready
• Natural rubber Smart Compound
• Puncture protection PS 2
• Handmade in Italy
• Weight 420 grams

Pro Handmade Clincher with Superpoly carcass

• 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. 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, a polyester with a higher TPI count, to produce cost-effective pro-level tyres.

Tubeless-Ready

• Perfect for use with tubeless systems: no inner tube, strong puncture protection and high efficiency.

Handcrafted natural rubber – standard hardness

• Challenge’s hand-crafted natural rubber treads 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 long-lasting performance.

Ganzo Puncture Protection System PPS2

• PPS2, Puncture Protection System Puncture protection for use on rough roads, cobblestones and gravel. In addition to the standard PPS protective layer between the tread and the carcass, these tyres offer unrivalled puncture protection thanks to an additional PPS fabric layer between the carcass and the inner tube.

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