Motorcycle legend 'King' Kenny Roberts will complete several hot laps on his infamous Yamaha TZ-750 during the Indy Mile AMA Flat Track Grand National race on Saturday at the Indiana State Fairgrounds.

Three-time 500cc world champion and two-time AMA Grand National champion Roberts rode the bike to a historic victory in 1975 at the "Indy Mile" with a breathtaking, last-lap pass.

The bike, built and tuned by former 250cc world champion Kel Carruthers, was thought by many to be impossible to ride on the dirt due to its brute power.

"After the race in 1975, I said they didn't pay me enough to ride that thing, and this year will be no different!" Roberts said. "But it should be fun for the fans to hear that Yamaha TZ once again up against the bales."

Reigning six-time MotoGP world champion Valentino Rossi plans to attend the event - which takes place near the Indianapolis MotoGP circuit - to see Roberts on the TZ-750.

"For sure, Kenny's win at this event on the Yamaha 34 years ago was monumental," Rossi said, "and the fact that I was not born yet makes it even more exciting for me to be there this time!"