The USA Pro Challenge bike race continues Tuesday with a 99.2 mile ride from Montrose to Mount Crested Butte. The undulating stage has three category 3 climbs, including the final 2-mile uphill effort to the finish on Mt. Crested Butte. The race will cause delays on U.S. Highway 50 eastbound from Montrose to Gunnison and on Colorado Highway 135 north to Crested Butte. The race starts 11:25 a.m. and ends around 4 p.m.Tyler Farrar of Wenatchee, Wash., won the first stage of the race on Monday.Wednesday's stage 3 is considered one of the toughest days of racing in the U.S. -- the epic Gunnison to Aspen stage will again feature two of the highest climbs in professional racing. The 131-mile Queen Stage includes a sprint line in Almont, a 14-mile dirt climb to the 12,126-foot summit of Cottonwood Pass, a sprint line in Buena Vista, followed by another monster 12,000 foot summit on the famed Independence Pass before a wild descent into Aspen.