A photochromic lens is a transparent lens that reacts to light. It has an optical filter that absorbs infrared radiation and ultraviolet rays while passing visible light, resulting
When I got into mountain biking, I guess I always thought about biking during the warm daylight. Most other sports happen during the day, so it made sense.
Sometimes bike riders mountain bike at night because there’s not enough daylight like in the late fall, and sometimes it’s because they truly enjoy it. In either case,
