can am 500 dirtbike!!!
they were fast back in the air cooled era. when two strokes were made to be reliable, funny old suzuki's can ams ect seemed to run for years with minimal maitinence , i wanted a can am sonic 500 in the early 80's "4 stroke". bought a yz 490, great bike once modified. but water cooled two strokes dont lose power when they get warmed up. my air cooled bike's had a wide power band and made great trail bike's. but my cr 500 would walk away from it in a race. not to mention suspension . old can ams were race ready back in the day. and it still shows in there sleds, watercrafts, atvs ect. check out a vintage race , im sure you'll see a couple there.