Cycle World Podcast

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 and what are its advantages. Also, you won't believe how old the technology is. Join Kevin and Mark for the bumpy world of cams above the head.

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 ever. Kevin and Mark dive into piston rings from the early days to now and talk about cylinder finish, ring gap, "flutter," and so much more. Join them on the Cycle World podcast!

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. Also, we have learned so much from these talented, intelligent people and share many stories about some of the greatest road racing riders and tuners of all time, how they win and how they progress. Join us!

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 Vincents to one sweet Yamaha TR-2 350cc roadracer, it's another good time with some amazing bikes.

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. Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer discuss hybrid power, including diesel electric trains and a Canadian company doing similar work on semi-trucks and a diesel hybrid pickup truck to retrofit your full-size bike hauler. Hop on and ride with us!