In the world of off-road riding, where the roar of two-stroke engines has long been king, a new player is shaking things up.

The five-cylinder motorcycle is rarer than getting a great deal on a vacation during the holiday season. Here are some that ...

The difference between Ford's 6.8 and 7.3 Godzilla V8 engines comes from a shorter stroke in the former and a lower ...

The two-stroke engine was once a staple in vehicles like the Trabant and other older models. Its simplicity and lightweight design made it a popular choice, but its inability to meet emissions ...

Everllence has confirmed the running on ethanol, at all load points, of its 21/31 dual-fuel engine at test facilities in Frederikshavn, Denmark. Everllence pioneered the two-stroke methanol-burning ...

Note: It’s purely MotoGP. Now that we have that clarified, here’s the big breaking news: Yamaha recently declared that it was formally retiring its iconic inline-four "big-bang" M1 – the same platform ...

Gearheads and faithful Jalopnik readers already know the basics of an engine's bore and stroke, but for those that might be new here, let's dip our toes in the shallow end. An engine's bore refers to ...

GM has filed a patent application for a two-stroke engine valve system. The patent application is tagged with patent number US 2025/0354528 A1 and was filed with the United States Patent and Trademark ...

What if the engine of the future wasn’t just a dream, but a reality? Imagine a power source that combines the raw, exhilarating performance of a two-stroke engine with innovative efficiency, ...

Everllence has unveiled its new, dual-fuel ME-LGIA (-Liquid Gas Injection Ammonia) engine. Using the Diesel principle and the well-known, dual-fuel liquid gas injection concept, the ME-LGIA engine has ...