Question 1: Does anyone know if the Gen 1 Duke 390 comes with undercut valve stems? Both the exhaust valves have a narrower ...

More an ancient tool than a groundbreaking gadget, the fire piston relies on basic chemistry to ignite a campfire with the ...

The Kawasake Versys line has a number of unique bikes, including 650 and 1100, but how do these iconic touring bikes compare ...

After losing him towards the end of his rookie season due to a blood clot, Ausar Thompson was able to return to the Detroit ...

Subaru had a very brief foray into Formula 1 racing with the help of a flat V12 engine, but its a story that most enthusiasts ...

There once was an 18-cyclinder 2-stroke triangle engine that delivered a whopping 2,000 horsepower, but it didn't power a car ...

Engine rpm is often equated to the heartbeat of an engine. If the rpm is too low, the engine shuts down, while very high rpm ...

The naturally aspirated 22R and turbocharged 22RE are considered to stand among the finest engines the brand has ever ...

Latest member of the ‘CB’ motorcycle lineup is the 2026 Honda CB1000F retro naked. Drawing inspiration from the CB750F racing ...

The new 1,200-horsepower C32B diesel engine from Caterpillar is for large wheel loaders, cranes, paving equipment, trenchers, ...

I tested the 2025 Lexus TX 500h across highways and city streets—here’s what I found in terms of performance, efficiency, and overall luxury.

Caterpillar introduced the Cat C32B diesel engine, a new power platform that delivers industry-leading power density and ...