Thats a lot of Motocross ! 50 years of Thursday Night Summer Series at Portland International Raceway, 10 minutes from downtown. It is a beautiful track with great spectating and parking with a large enthusiast crowd that loves getting their dirt on. The great majority of the riders are on 450s but there are many classes from Minis to my favorite and pictured here,Vintage. They ran one big class of Vintage that encompassed all classifications. The track is definitely a 450 track but the classics attacked it with gusto and put on a show !
