Twin Air filters are the best in the world of Motocross so why not try it on the XL1100 Flat Tracker. My friends at Twin Air (Veghel, The Netherlands) hooked me up with this ATV filter with spring and special "Grand Prix" cover to keep all the dirt/grit/mud/rain/snow out of the new Mikuni. Twin Air was always my choice of filter for Motocross and now I'm stoked to have it on my Harley-Davidson. Test rides soon.
Thanks Twin Air for the hookup, see you guys at the gate this Sunday for the 4th GP Maisplakcross.