Trek Checkmate SLR has clearance for 45-mm tires. This one is nominally 40 mm but actually closer to 41.5. Image: Matt Stetson The Checkmate adventure gravel bike has clearance for 50-mm-wide tires.

The brand’s bikes cater for the most serious racers, adventure seekers, time triallists, aspiring amateurs, and gravel speedsters. Trek’s road racing range now uses a universal H1.5 geometry ...

Running the optimum pressure for the best gravel tyres can really unlock their full potential. Get the number right, and you’ll be rewarded with improved comfort, speed and grip. But how do you ...