Rimar Motors, in the Netherlands, is in the advanced stages of machining and assembling a 600cc 2 stroke, V-twin engine, designed to be installed in a 2004 Aprilia RSV1000R frame. The project has been going on for about a year and they've put up detailed photos of the entire process. The engine uses reed valves and two counter-rotating crankshafts. Cylinders come from a … [Read more...]
How To Drive and Steer the Same Wheel in a Two Wheel Steering Motorcycle
Last summer we showed the latest version of Bob Horn's recumbent racer with two wheel steering. If you're new here, Bob's race bike is his own design and entirely scratch built and when you decide to incorporate 2WS, you can't just look around to see how everyone else did it and choose the method you like best, because recumbent 2WS race bikes are non existent. So Bob thought … [Read more...]
Engine Cutaways the Hard Way
In these days of computer animation, young people don't see real engine cutaways as often as we once did. When you can peel away the layers with the click of a mouse, the old art of machining away metal to reveal the moving parts underneath is rapidly giving way to CAD software and 3D rendering. The young are likely convinced they've seen what they need to, but there's … [Read more...]