The best mountain-biking shorts and shirts for when you don't want to ride in Spandex, according to an avid cyclist

Sean M Burke/Business Insider As a former road racer, one of the things that I love the most about mountain biking is that it isn't too serious. Mountain-bike riding doesn't place as much emphasis on aerodynamics, so you can wear looser-fitting clothing. Modern mountain-bike shorts combine the comfort of road shorts with a robust and good-looking outer short. Breathable fabrics and bike-friendly cuts make these T-shirts, shorts, and flannels fun to ride in as well as hang out in after. For an ev...