Geoff's Bike & Ski's Aaron Robnett hurdles an obstacle during the fourth annual Bobbers Cross cyclocross race held at the namesake's bar and grill and campground at the Coralville Lake in North Liberty on Saturday October 12, 2013. Cyclocross is a type of bike race held in autumn and winter in which riders must traverse different terrains, obstacles, and other situations in which they must dismount and carry their bike. (Justin Torner/Freelance for the Press-Citizen)