![Challenge Gravel Grinder review: An unpredictable tyre, yet despite the low score I still like them | Cyclingnews Challenge Gravel Grinder review: An unpredictable tyre, yet despite the low score I still like them | Cyclingnews](https://cdn.mos.cms.futurecdn.net/B7uxubJJNe7BsqeFGPYgZF.jpg)
Challenge Gravel Grinder review: An unpredictable tyre, yet despite the low score I still like them | Cyclingnews
![Challenge Tires on X: "A thing of beauty.. Handmade TLR Gravel Grinder, not long to go. #ChallengeTires 📸@4seasoncollective https://t.co/idVYw0Cj5S" / X Challenge Tires on X: "A thing of beauty.. Handmade TLR Gravel Grinder, not long to go. #ChallengeTires 📸@4seasoncollective https://t.co/idVYw0Cj5S" / X](https://pbs.twimg.com/media/EMDuIt2XUAEYefz.jpg:large)
Challenge Tires on X: "A thing of beauty.. Handmade TLR Gravel Grinder, not long to go. #ChallengeTires 📸@4seasoncollective https://t.co/idVYw0Cj5S" / X
![Challenge Gravel Grinder Pro Series TLR Tire 2-Pack Excel Sports | Shop Online From Boulder Colorado Challenge Gravel Grinder Pro Series TLR Tire 2-Pack Excel Sports | Shop Online From Boulder Colorado](https://images.excelsports.com/public/large/120533-1.jpg)