Designed for Gravel riders, the Challenge Gravel Grinder 700x33c features large sidewall lugs and a waffle tread pattern, offering both excellent handling and performance.
The tyre is built around a 120 TPI nylon carcass that combines light weight with exceptional flexibility, making it ideal for racing, and features PPS puncture protection – a high-strength aramid layer between the tread and carcass – for maximum reliability.







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