Upgrades Riders can upgrade his CX category independently by earning upgrade points :
 4 > 3: Need 7 points in 12 months OR experience in 5 races;   20 points is an automatic upgrade
 3 > 2: Need 10 points in any 12 month period;   25 points is an automatic upgrade - or - 2 wins
 2 > 1: Need 20 points in any 12 month period;   30 points is an automatic upgrade - or - 2 wins