Desmodromic valves are mostly a thing of the past, but one Italian motorcycle company continues to soldier on with the technology, and we're curious why. So what exactly is 'Desmo' and why is it ...

The stroke of the valves to provide the full flow area is approximately 25% of the stroke of the equivalent poppet valve, thus allowing direct electrical actuation with very low power consumption.

Smarty-pants physics also tells us that poppet valves can't instantly open and close, so instead of 180-degree increments, an engine's valves typically remain open far longer to introduce enough ...

Ford Motor Company is recalling certain 2024-2025 Ford E-350, F-650, and F-750 vehicles over concerns that the park pawl may not fully engage the park gear due to a casting defect in the transmission.

Four Stroke Cycle with Poppet valves. Courtesy Wikipedia, CC BY-SA 3.0. ... Fairly straightforward at the model level with fewer parts than an overhead valve engine. https: ...