Old - DO NOT USE - The Coast NewsRancho Santa FeSportsBryce Vallee ready to breakout at Qualcomm Supercross raceJared WhitlockFebruary 7, 2012July 21, 2015 February 7, 2012July 21, 20153 438 ESCONDIDO — Motocross riders usually begin riding at a young age. Many hop on a dirt bike as early as 4 years old and start...