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

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 ...

Swap your knobby gravel tires for these expert-tested wide slicks and enjoy a smoother, faster, and more comfortable pavement ride—even in cold weather.