Challenge Gravel Grinder Tubeless Ready Gravel Tyre

Make your mark on the gravel scene with the Gravel Grinder. This tire combines a fast rolling diamond center with aggressive shoulder knobs that only hook-up when the terrain gets soft, muddy, or a bit sketchy.

The Challenge Gravel Grinder Tubeless Ready Gravel Tyre is designed for speed and offers a lively ride, but it may not suit everyone due to its fragility and specific performance characteristics. It’s a versatile tire that performs well on both road and gravel, with a design rooted in cyclocross tire technology.

Specifications

WEIGHT: 390g
PRESSURE: 2.2 – 3.7 BAR
SAFETY LIMIT: 500 KPA

Design and Features

The Challenge Gravel Grinder features a file center tread, bordered by widely spaced triangles, and incorporates shoulder knobs from Challenge’s Limus mud tire. The central file texture is finer, extending up to the shoulder triangles1.

Key features include:

Tread Design: A file center for speed on roads and graded gravel, with side knobs for grip in corners1.
Casing Options: Available in cotton cased (handmade) or vulcanized rubber construction. The handmade version has a more supple carcass for better grip and a smoother ride, but it is more fragile14.
Tubeless Ready: Designed for use with liquid sealant on tubeless-ready wheels4.

Performance and Ride Quality

The Challenge Gravel Grinder is known for its speed on both road and easy gravel, making it suitable for mixed-terrain riding. However, its performance can be unpredictable when grip is lost, especially in corners, where the side knobs provide a “get-out-of-jail-free card”1.

Installation and Setup

Challenge handmade clinchers can be difficult to install and seat, often requiring multiple attempts to seal properly. Using appropriate sealant is crucial; additive-free solutions are recommended to avoid issues with the tyre’s bead1.