This race is part of the Over the Hump Mountain Bike Race Series in Orange County 2013. Race series offer 12 races through May 21 to August 27. Pre-register for $25/race. Race Day registration is $30/race, and t-shirts will be $12 on site as supplies last. Classes for Men's True Beginner Open (16 and over), Men's beginner 1 (29 and under), Men's beginner 2 (30-39), Men's beginner 3 (40-49), Men's beginner 4 (50 & over), Men's Sport 1 (29 and under), Men's Sport 2 (30-39), Men's Sport 3 (40-49), Men's Sport 4 (50 & over), Men's Super Sport (49 & under), Men's Super Sport Masters (50 & over), Single Speed-All Ages, Men's Expert-All Ages, Men's Pro-All Ages, Clydesdale Open (200 lbs +), Boy's Juniors & Girl's Juniors (12 to 15 yrs), Kids Boys & Girls #1 (onsite reg, 6 to 8 yrs, $10), Kids Boys & Girls #2 (onsite reg, 9 to 11 yrs, $10), Women's Beginner-All Ages, Women's Sport-All Ages, Women's Expert / Pro-All Ages.