I tested 25, 28, 30, and 32 mm tires. The fastest tire was nearly six seconds per mile faster than the slowest.

What’s 2mm? For some that’s the difference between a tire fitting within a frame or brake or not. For others, 2mm offers an ability to ride a few psi lower without bottoming out or pinching a tube, if ...

Cyclists who always aim for a comfortable, fun, and fast ride know that a big factor in achieving that dream is their bicycle’s tires. A road bike tire needs to have good traction, enough give to ...

Challenge has three new road-tires: the all-new, all-season 4 Stagioni XP, the reworked Strada Pro, and the voluminous Elite Pro.

Since they're the only part of the bike that actually contacts the ground, tires are arguably the most important component on any gravel bike, and choosing the wrong rubber set-up can be the ...