The Challenge Gravel Grinder Open Tubular Folding Tyre is designed to take on gravel roads to deliver a secure performance.

Created to inspire off road confidence, the knobs of tread on the edges of the tyre hold tight to the ground and the low profile centre decreases rolling resistance for efficient pedalling.

Features

Handmade quality

Designed for all round gravel

Tread pattern designed to increase grip and inspire confidence in loose gravel conditions

Specifications

Use: All Around Gravel

Size: 28"

Tire Width: 36 mm

Rim Width: 17-23 mm

Weight: 355g

TPI: 260

Bead: Aramid

Casing: SuperPoly

Flat protection: Double PPS

BAR: 3-9

PSI: 45-130

Color: Black, Black/Tan

NOTE

NOT TO BE USED WITH TUBELESS RIMS OR ENVE WHEELSETS

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