Challenge Tyre Gravel Grinder HTLR Clincher 40-622 SW/BR

Challenge Tyre Gravel Grinder HTLR Clincher 40-622 SW/BR

Not road, not cyclocross - gravel races are in vogue and attract more and more participants. The Gravel Grinder feels particularly at home on long distances over unpaved roads. And of course in everyday life, which requires a particularly insensitive tyre.

Range of application
Fast rolling tyre, offers excellent control for everything around gravel and adventure.

Features

Pro Handmade Tubeless Ready with Superpoly carcass

• Handcrafted tyres combine a variety of outstanding features to offer the highest comfort and lowest rolling resistance. Carefully selected materials are used in the different tyre levels according to usage performance requirements. Soft, supple carcasses 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 cheapest of all handmade carcasses. It is a synthetic fabric that is very strong and waterproof and offers much more flexibility and durability than comparable nylon materials. Challenge uses high quality polyester or SuperPoly (higher TPI polyester) to produce cost effective pro-level tyres.

• Perfectly suited for use with tubeless systems: No tube, strong puncture protection and high efficiency.

• Challenge's handcrafted natural rubber treads are compounded to provide the perfect level of durability without compromising performance, comfort and control. Challenge tyres wear out 10-20% faster than the competition, but score with significantly improved performance and noticeably better ride feel throughout their lifetime. Depending on the requirements, the tyres are equipped with different soft rubber compounds.
• The Smart hardness grade is the long-life optimised version of Challenge's natural rubber compounds.
• The SMARTplus compound is a slightly harder natural rubber compound specially designed for high mileage. The formulation effectively reduces wear, making the tyre even more resistant and durable.

• The tyres, which are designed for use on rough roads, cobblestones and gravel, are equipped with the PPS2 (Puncture Protection System 2). In addition to the normal PPS protective layer between the tread and carcass, these offer unrivalled puncture protection thanks to an additional PPS fabric layer between the carcass and inner tube.

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