The premise is simple: Compete in a motocross grand prix followed immediately by a cross-country mountain bike race. The inaugural 2010 series consisted of four meets, all held on the grounds of Cahuilla Creek Motocross in Anza, California. The atmosphere is competitive but fun, and for most participants it’s a casual run-what-ya’-brung event. At the race I attended in January, motorcycles included an 85cc two-stroke, a 450cc four-stroke and everything in between. The same variety was reflected in the mountain bike contingent. I was lucky enough to have a 2010 Yamaha YZ250F (the same bike John L. Stein raced in the Catalina Grand Prix) and my own 6-inch-travel Trek Remedy mountain bike.