Description

CHALLENGE Grinder Race 700C x 42 Gravel Tyre | Speed & Control for Any Terrain
Unleash your gravel bike´s true potential with the CHALLENGE Grinder Race 700C x 42 gravel tyre. Expertly designed for the modern adventurer who demands speed on the tarmac and unwavering grip on the trail, the Grinder is the ultimate all-condition tyre for your most ambitious rides. Whether you´re competing in a grueling gravel race, exploring forgotten backroads, or simply seeking a do-it-all tyre for your mixed-terrain commutes, the Grinder Race delivers an unparalleled blend of performance, comfort, and control.
Key Benefits:
* Effortless Speed on Hardpack and Tarmac: The Grinder Race is engineered for minimal rolling resistance. The fast-rolling center tread allows you to maintain high speeds on paved sections and hard-packed gravel, ensuring you conserve energy and keep pace with the group without the drag typically associated with knobby tyres.
* Unshakeable Cornering Confidence: Transition from straight-line speed to aggressive cornering with absolute trust. The progressively taller and more substantial shoulder knobs dig into soft dirt, loose gravel, and mud, providing exceptional bite and predictable handling when you lean the bike into a turn.
* Superior Comfort and Vibration Damping: The large 42mm volume is a game-changer for long days in the saddle. It allows you to run lower tyre pressures, creating a larger contact patch for more grip and dramatically smoothing out rough surfaces, from jarring cobbled sectors to chattery washboard roads. This increased compliance reduces rider fatigue and enhances control.
* All-Condition Versatility: Don´t let changing conditions dictate your route. The Grinder´s intelligent tread design makes it a true master of versatility. It performs exceptionally well across a wide spectrum of surfaces, including gravel, dirt, forest paths, rough pavement, and even sand, making it the perfect single tyre choice for unpredictable adventures.
Main Features:
The CHALLENGE Grinder Race stands out with its meticulously engineered design. It features a high-performance folding bead, which reduces the overall weight and makes it easy to install or carry as a spare. The clincher design ensures compatibility with the vast majority of standard gravel and cyclocross wheelsets. At its core is a sophisticated dual-compound tread pattern: a semi-slick center with tightly-packed, diamond-shaped micro-knobs provides a smooth and swift ride on firm ground. As you move towards the edge of the tyre, the tread transitions to more aggressive, well-spaced shoulder knobs designed for maximum control and traction during cornering and on softer terrain. Integrated beneath the tread is Challenge´s reliable Puncture Protection System (PPS), a special fabric placed between the tread and casing to increase resistance against flats without compromising the tyre´s supple ride feel.
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Challenge Gravel Grinder Folding Tire – Race | Nylon | PPS 700C x 38
Size: 700C / 38.
Micro blocks on the center with a diamond shape for a fast rolling speed in gravel roads and tarmac, and with bigger blocks in the outside that are just perfect when there is soft sand, dirt or closed turns and cornering. Comfortable, with maximum control, this large-volume, all-condition tire is ideal for rough, cobbled, dirt or gravel roads.
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Technical Specifications:
* Product: CHALLENGE Grinder Race Gravel Tyre
* Use: Gravel cycling, All-Road, Mixed-Terrain
* Size: 28´´- 700C
* Width: 42mm (ETRTO 42-622)
* Type: Clincher
* Bead: Folding (Aramid)
* Casing: Performance Nylon
* TPI (Threads Per Inch): 120
* Recommended Inflation Pressure: 2.0 – 4.5 Bar (30 – 65 PSI)
* Colour: Black