🚵 Challenge Gravel Grinder TLR: Enhanced Black Tubeless Tire – 38mm Performance Review

Bought to replace another gravel breaker with a damaged sidewall. They are lightweight and work great with a tubeless setup. Let's hope the damaged sidewall is a mistake. If this happens again I will move on to other options.

Bought a set and the one on the back is not round. It was so bad that I immediately felt the first ride with them (on the street). At first I thought maybe my rim wasn't round so I took the tire off the rim and the rim is fine. You can also see the defect by turning the wheel on the bike and looking from the side. I won't buy these again.

Bought two tires, both fitted with no problems, used Stan's sealant. One tire held air well, the other immediately began to lose air pressure significantly. Feeling unsafe driving it, I returned it (air was leaking through the side panels I guess, and rolling around Stans sealant didn't help). Better quality control was needed. For one that works - great tire, great rolling resistance and great cornering.

This tire was amazing. So far I've done 180 miles and one cyclocross race and no problems. I use it as a front tubeless setup and no flats so far. Grass and hard dirt is where it shines. The gravel was also very good but when it's loose in corners it slips a bit but I expected that so I don't use it in races where there's a lot of loose gravel in the corners. Tubeless was very easy (DT Swiss Spline wheels), it took me two shots of my airshot and then some more and I was ready to go. After 75…