Originally Posted by FloridaSteve
Here's another one. Forgot I had this pic. Man, riding that bike must be for only the truly "gifted".
Ten to one that is one of the Champion frames built for Irv Kanemoto back in 1974-75. They ran at Indy too. Fast motors, but Castro, Nixon, and Brelsford didn't figure out the racing line needed. Roberts did. The two strokes needed to come in high, cut low, and exit high - squaring off the corner. The four strokes make a graceful giant oval of the whole track, running in a smooth transition to a low line.