Does a Longer Stroke Make More Torque?

Kevin will start with atmospheric intake valves and someone from the 1800s, but for real we are talking about Overhead Cams here. Why has OHC become the standard for four-stroke-engine valve operation...

21 Jan 1h 5min

Early attempts at sealing pistons in cylinders included hemp and other natural fibers. Today's piston rings are made of amazing metallic materials that allow motorcycle engines to last longer than eve...

14 Jan 1h 7min

In this week's episode, Cycle World Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer talk about racers and crew chiefs and how their seeming supernatural powers relate to their humanity. ...

7 Jan 1h 2min

Hey, there are more than 2000 bikes, and Kevin and Mark picked so many bikes for the first episode of the 2026 Mecum Las Vegas motorcycle auction that they wanted to keep going! Honda NSR400 to Vincen...

31 Des 20251h 22min

Hybrid power can bring the best of electric and combustion power together, but does it make sense for motorcycles? Benda recently showed a hybrid prototype and Kawasaki has already taken the plunge. T...

24 Des 20251h 6min

Kevin and Mark pick their favorite bikes from the MASSIVE Mecum Las Vegas Motorcycle Auction. Of course, Kevin picked technically interesting and historically significant bikes, and Mark picked "stuff...

17 Des 20251h 31min

Harley-Davidson debuted the Knucklehead in 1936 and millions of subsequent Big Twins built in its image continue to "potato-potato" down the road! Technical Editor Kevin Cameron and Editor-in-Chief Ma...

10 Des 20251h 16min

As Technical Editor Kevin Cameron likes to say about aircraft, they have to be light enough to fly and heavy enough to make it to the destination reliably. This drove innovation in design and metallur...

3 Des 20251h 19min