When our North American Editor reviewed the wheels, Zipp’s online tool, which figures in rider and bike weight proved interesting; it recommended just 25 PSI (1.76 bar) on the front and 27 PSI ...

When it comes to the pressure of mountain and gravel bike tires, a few psi either way can make a big difference in performance. ... It isn't rated for tire pressures greater than 85 psi (5.9 bar).

Challenge Gravel Grinder TLR 700c x 42mm Tubeless Gravel Tire Specs: MSRP: $67.99 each Size: 700c x 42mm, 38mm (650b x 46mm also available) Width: 42mm: Actual: 44.2mm on 21.6mm internal width rim at ...

I selected the best fat tire bikes based on personal ride-testing, as well as input from experts at Bicycling.I’ve ridden a lot of fat bikes across mountain trails all over the Pacific Northwest ...

That’s exactly what is going on with the new edition of Arkansas-based Allied’s already legendary Able, which now boasts the most gravel bike tire clearance I’ve ever seen — by a lot. Cleared for ...

Once off-road, tire pressures can be deflated to 18 psi to 20 psi depending on terrain, speed, and manufacturers recommendations but should be returned to spec before hitting highway speeds again.