Mountain Biking Mountain bikers have been known to use llamas to carry their bikes up steep trails. True False None The first official mountain bike race was called the "Repack Race" because riders had to repack their brakes with grease after every run. True False None There is an annual mountain biking race that includes riding down an active volcano. True False None The Guinness World Record for the longest mountain bike jump is over 200 feet. True False None In some mountain biking events, costumes are mandatory for participants. True False None Time's up Most Popular Most Popular