The Kneeslider

Doers Builders and Positive People

Honda NR750 Oval Piston 32 Valve V4 for Sale

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You don't see many oval piston sport bikes for sale these days, or any other days, for that matter. The Honda NR750, an outgrowth of the NR500 GP bike, was a rare specimen back in the early 1990s when it was new and I just got a note from Tim, one of our regulars here, that he spotted one of these exotic machines for sale on eBay over in the UK. The NR750 has four oval … [Read more...]

Ducati Elenore V8 Update

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After everyone saw the patent drawing of the Ducati Elenore V8 built by Dieter Hartmann-Wirthwein, there was a lot of head scratching going on as everyone tried to visualize the engine internals in motion. I asked Dieter if he had any more images from other perspectives so he uploaded a few and, even better, the video he used at his display at Intermot. Seeing everything in … [Read more...]

Nembo Motociclette Inverted 3 Cylinder Super 32 Rovescio Motorcycle Engine

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A lot of interesting projects come across our desk here at The Kneeslider, but this one, sent in by Daniele 'Titus' Sabatini of Rome, Italy, deserves a bit more attention. It's a brand new 3 cylinder motorcycle engine called the Nembo Motociclette Super 32 Rovescio, a 2 valve, air/oil cooled, single overhead cam, inverted triple. "Inverted," means just what it says, the engine … [Read more...]

300cc Inline 6 Cylinder by Guy Coulon – a 22000 RPM Race Engine Personal Project

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Guy Coulon is Colin Edwards' crew chief on the Tech3 Motogp team. When Guy isn't directing the building and maintenance of exotic race bikes, he spends his time exercising his skills building exotic engines and bikes for himself like this tube frame, 300cc inline 6 cylinder racer, an extremely impressive engineering project. I hesitate to use the word "homebuilt" since he … [Read more...]

Ducati Elenore 868cc V8

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Dieter Hartmann-Wirthwein, who we saw some time back with his 4 cylinder 125cc Monkey Bike, was working on a Ducati V8 project. It looks like the engine project is finished and he's even got a patent for the connecting rod arrangement using the original 900SS crankshaft. Think about that, this is a V8 engine using the original 2 cylinder 900SS crankshaft! From the drawing, you … [Read more...]

Carberry Enfield V-Twins Ready to Go

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The Carberry Enfield V-Twin has been through a very slow and methodical process on its way to production. We haven't heard much about them for a while but I just got word they're now taking orders with 12 crankshafts being assembled and 12 crankcases being machined, not to mention they have a number of the gorgeous V-Twin engines already on the road. New owners of the Carberry … [Read more...]