This is what Bike EXIF have to say about this opportunity…

To say that John Piper’s resume is impressive would be the understatement of the year. His long and illustrious engineering career includes stints at the Williams and Benetton Formula One teams, Prodrive and Jaguar.

He’s worked in all types of motor racing, including WSBK where his team designed and built the Foggy World Super Bike for Petronas. His cars have been on the podium at Le Mans and have set land speed records. And he’s responsible for blowing our servers up with one of the most popular machines we’ve ever featured.

When the PiperMoto J Series ‘super scooter’ exploded onto the scene in June of last year, it went on to top the charts in our annual Bike EXIF Top 10. Yes, you read that correctly—our most popular bike of 2023 was a scooter.

It’s not just any ol’ scoot though. The custom-framed, carbon composite-clad two-seater is powered by a four-stroke KTM 690 engine. Hosting a raft of internal, exhaust, and intake modifications, the LC4 engine propels the J Series to 60 mph in four seconds and can continue to a 120 mph top speed.

Since its debut, John has received hundreds of enquiries from all over the world—and rightly so, as the whole package is dripping in style and engineering finesse. Sadly, it’s time for John to progress to the next chapter in his PiperMoto story.

“I’m now at a crucial point in my custom build work and I want to fund my next bike build,” explains John. “Despite receiving hundreds of very flattering inquiries, I’ve not managed to take my project any further. As I do not have the resources to take it into production myself, I have decided to sell the whole project to anyone who would like to take it.”

Along with the original, running, and road-legal (in the UK) Prototype J Series, the sale will include the full rights to the design and all the design and engineering data—from the Solidworks CAD engineering files and hard copy drawing records to the detailed Bill of Materials. Along with the documentation, John will also include the prototype frame jig and the original prototype bodywork molds. What that means, is that whoever purchases the J Series will have the building blocks to do what John’s always wanted to do; put the J-Series into production.

It’s a shame to see John let go of such a unique piece of his motorcycle-building history, but we’re sure that whoever takes up the J Series mantle will continue his impressive work. If you’re interested, reach out to John directly. [Source: Bike EXIF]