Longtime MTB trail builder Joey Klein explains how designs have changed over three decades

Joey Klein has been involved in mountain bike trail design for more than 30 years, and has worked for the International Mountain Bike Association (IMBA) longer than anyone else. This year he's being inducted into the mountain bike hall of fame in recognition of his contributions to the sport. How did you first get involved in trail design? What it like to be a part of the Subaru-IMBA Trail Care…