Challenge Gravel Grinder Pro TLR ! 700x33, 70036, 700x40

Challenge Gravel Grinder Pro TLR ! 700x33, 70036, 700x40

Not road, not cyclocross - gravel races, i.e. races on gravel, are trendy and are attracting more and more participants. The Gravel Grinder feels particularly comfortable on long journeys over unpaved roads. And of course in everyday life, which requires a particularly durable tire.

Area of application:

Fast rolling tire, offers excellent control for everything gravel and adventure.

Features:

Pro Handmade Tubeless Ready with Superpoly casing

Handcrafted tires combine a variety of outstanding features to provide maximum comfort and lowest rolling resistance. Carefully selected materials are used in different tire levels depending on usage performance requirements. Soft, supple carcasses quickly adapt to the shape of the surface when rolling and cornering. This increases ground contact and grip and improves shock absorption on poor roads. Soft, natural rubber profiles are combined with lightweight, flexible puncture protection.

Polyester is the cheapest of all hand-made casings. It is a synthetic fabric that is very strong and waterproof and offers significantly more flexibility and durability than comparable nylon materials. Challenge uses high quality polyester or SuperPoly (higher TPI polyester) to produce cost-effective Pro Level tires.

Tubeless ready

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

Handmade natural rubber - different degrees of hardness

Challenge's handcrafted natural rubber treads are compounded to provide the perfect level of durability without compromising performance, comfort and control. Although Challenge tires wear 10 - 20% faster than the competition, they offer significantly improved performance and a noticeably better driving experience throughout their lifespan. Depending on the requirements, the tires are equipped with rubber compounds of different softness.

The Smart hardness level is the variant of Challenge's natural rubber mixtures that has been optimized for a long service life.

The SMARTplus Compound is a slightly harder natural rubber mixture specially designed for high mileage. The formulation effectively reduces wear and makes the tire even more resistant and durable.

Puncture Protection System 2 (PPS2)

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

Ganzo Puncture Protection System PPS GANZO

The Ganzo Puncture Protection System is a highly flexible, even more tightly woven multi-component puncture protection that is integrated between the tread and the carcass. The Ganzo PPS makes the tire lighter, even more puncture-proof and preserves the supple, comfortable character of Challenge tires.