With his mother as inspiration, endurance athlete Sam Fox is ready to tackle the 48-state "Tour de Fox" to battle Parkinson's disease

Sam Fox has been touched by the daily battle his mother, Lucy, has in dealing with her Parkinson's disease. Now the endurance hiker/runner/cyclist will embark on a cross-country Tour de Fox to raise money and attention for fighting the disease. My story for ESPN.com's Endurance Sports section: http://espn.go.com/sports/endurance/story/_/id/12833946/endurance-sports-sam-fox-taking-lower-48-states-fight-parkinson-disease