Should you get a portable, automated tire inflator? I test the VIAIR EVC31 PRO: it's a compact, capable tire Inflator tested ...

The portable tire inflators tested here rely on one of four power sources: a built-in rechargeable battery, 12 volts by ...

I’ve been carrying a VIAIR compressor in my cars for the past 15 years or so. When I was doing instrumented vehicle testing, before any car turned a wheel in anger, we’d get corner weights, torque the ...

If you have been reading4WORfor long you have likely heard us extol the virtues of airing down your tires on the trail for increased traction and an improved ride. Airing down can be as easy as ...

Practically every time our tires hit the dirt, we air down. It makes such a tremendous difference in the ride quality and performance of the vehicle, it’s absolutely silly not to. Airing back up is ...

New perk: Easily find new routes and hidden gems, upcoming running events, and more near you. Your weekly Local Running Newsletter has everything you need to lace up! Subscribe today. In this episode ...