Dt-1 Air Filters support following teams in 2010 :

Monster Energy Yamaha MX Rinaldi Team
                David Philippaerts MX1 ( Worldchampion MX1 2008 )
                Gautier Paulin   MX2

L&M Racing Yamaha USA
                James Stewart                 ( USA champion )
                Josh Hill

Monster Energy Yamaha MX Ricci Team
                Ken De Dycker MX 1
                Alessandro Lupino MX2
                Loic Larrieu MX 2

Yamaha Gariboldi Racing Team
                Christhope Charlier MX 2

Red Bull Ktm Factory Racing Team
                Antonio Cairoli MX 1 ( Worldchampion MX1 2009 )
                Rui Goncalves MX 1
                Max Nagl MX 1

Jagermeister/KTM Factory Team USA
                Mike Alessi
                Tommy Searle

Red Bull Ktm JM Racing
                Joel Roelants MX 2
                Dennis Verbruggen MX 2
                Alex Alletru MX 2
                Yentel Martens MX 1
                Jordi Tixier 2STR

Bud Racing Kawasaki Team
                Gregory Aranda MX 1
                Nicolas Aubin MX 2
                Dylan Ferrandis :125 Junior french & world championship

World Enduro Championship

BMW Motorrad Motorsport Enduro Team
                 Juha Salminen
                 Marko Tarkkala
                 Anders Eriksson ( Yamaha )

Beachraces
                 Jean-Claude Moussee ( FR )
                 Yamaha Team France

RoadRace

RT Motorsports
                Gareth Jones    ( Supersport 600 champion Nieuw Zeeland - Dutch Superbike Champion )