The Honda CB750 Prototype That Changed Motorcycling Forever

We are live from Mecum Las Vegas Motorcycles as another action packed day gets underway. With hundreds of motorcycles, Road Art, and collections on site, today’s show dives into the stories, history, and standout machines that make this auction one of the most exciting stops on the Mecum calendar.

_Day Rundown_
It’s a full slate today with 28 pieces of Road Art, 443 motorcycles crossing the auction block, and 21 different collections represented.

_1974 Penton Mint 400_
Laurette takes a closer look at a 1974 Penton Mint 400 with a unique racing past. We break down its competition focused upgrades, including a newer year powerplant, 355cc two stroke engine, six speed gearbox, Ceriani forks, upgraded wheels, and AHRMA ready setup. This bike has been in storage and has not been started since, adding another layer of intrigue as it heads to the block.

_The McNally Collection_
We revisit the McNally Collection, a massive offering of more than 150 high quality motorcycles. Heavy on British built icons from the 1950s and 1960s, the collection features standout examples from BSA, Matchless, Triumph, Norton, and more. We catch up with several people involved to share how this impressive group came together.

_Honda CB750 Prototype_
One of the rarest motorcycles at the auction takes center stage as we dive into the Honda CB750 Prototype. This is the very first CB750 sent to American Honda for testing and marketing and features numerous one off components not found on any other CB750. From its unique sandcast engine parts to its experimental carburetion and clutch design, we break down why this motorcycle could set records when it crosses the auction block on Saturday.

_BMW RS1100 Battle of the Legends_
Laurette finds not one but two pristine BMW RS1100 Battle of the Legends motorcycles on site. We explore the history behind the legendary race, why these machines earned their reputation on track, and what makes these examples so special as they prepare to cross the block this week.

Thanks for joining us for today’s live auction pre show. The auction will begin shortly, and we’ll see you back here again tomorrow. Watch today’s auction live on the Mecum YouTube channel or at mecum.com with no subscription required.

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_*Watch previous episodes:*_ https://www.youtube.com/playlist?list=PLAK4nG9SIaAD0ehHd4DsHGIwR-1rfbQQF
_*Full Auction Details:*_ https://www.mecum.com/auctions/kissimmee-2026/

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