someplace in CA I believe. Monterey? Mecum Auctions.
https://www.mecum.com/lots/1095594/...mance-yamaha-fzr-race-editions-pair-offering/
Plenty of other interesting bikes, many competition, both road racing and dirt track, motocross, and short track.
1967 Honda 450cc DOHC vertical/parallel twin, factory entry at the Daytona 200 the CR450.
Honda didn't win until Dick Mann won in 1970. He was an 'afterthought,' brought in at the last minute, but won. Next year he repeated, but on a Triumph OHV triple. After that, Yamaha won 13 in a row (see below) with 350 twins, then the TZ700/750.
Don Emde, son of 1948 DAYTONA 200 Champion Floyd Emde, became victorious on the 3.81-mile circuit in 1972, winning Yamaha’s first of 13 consecutive victories and making the Emde's the only father-son duo to both win the DAYTONA 200.
Prefer an inline-4 cyl? 1918 Henderson so that's 105 years ago!
https://www.mecum.com/lots/563043/1918-henderson-model-h-four/
Perhaps you prefer a competition bike when they ran on the board tracks? Same decade as the above, but an Indian '8 Valve' V-twin. Four valves/cyl.
What an amazing piece of machinery! Metal sculpture. The engine is a stressed frame member.
Exposed valve actuation, and a hand oil pump, for the total loss lubrication system. Look on the right side, where the oil tank is attached to the rear frame member. On the left, note the generous relief in the vertically-positioned oil tank for the rear cyl exhaust pipe.
https://www.mecum.com/lots/563042/1915-indian-8-valve-board-track-racer/
If a pre-WW I Indian V-twin is more bike than you want to wrestle around a track, then perhaps this 1914 Indian single will work for you. Another 4-valve cyl head design. Who would suspect that back in the early days, they would be running 4 valve/cylinder? But, no rear suspension! Peugeot designed a DOHC racing car engine before even this single cylinder Indian. The Peugeot ran and won at the Indy 500.
Note the difference in the bottom of the frame on this, compared to the 1918 Indian 4-valve/cylinder V-twin. The two bikes' engines look nearly identical but for the missing cylinder, conn. rod, piston, and head. The front suspension looks identical, both are girders. Rear suspension? Well, leather is flexible, isn't it? The Harley Big Twins did without frame-mounted rear suspension until the Duo-Glide of 1958.
