In the 100th issue special edition from DIRT you can win the sick looking DMR Transition that's in the pic above. And you know you want it! Congrats to DIRT for making it to their 100th issue!
"High quality feel, and has some really nice design touches; it works on both Schrader and Presta valves, you can keep your cartridge in the body without risk of accidental puncturing and airflow can be controlled."