Surfing rock gardens sans bike is exhilarating. It’s also pretty rough on shoe soles. If you’re lucky enough to ride Sidi Dragons or Dominator 6s, you can replace the rubber bottoms with a few clicks of the mouse and a Philips head screwdriver. Each shoe has four replaceable sections and the system comes with 8 pieces of bottom (four per shoe) and enough screws to replace everything. You can swap out everything at once, or do it as necessary.