Cycle World Podcast

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast Every superbike and MotoGP bike Ducati has made in the last 50-plus years owes it all to the company's first successful V-twin racer: The 1972 Imola 750. The Imola 200-mile race was the coming out party for Ducati's 750 Imola racebike, designed and led by the great engineer Fabio Taglioni. It was the motorcycle Ducati needed...

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast Yamaha democratized racing in the 1960s with affordable two-stroke production racers that were essentially ready for the track. How TDs, TZs and more made racing affordable and changed the paddock over two decades. Photo: Mecum Auctions

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast We go back to the original Superbike engines of the 1970s to see where they began and how they have evolved into the powerhouses we have now. Join us!

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast The US motorcycle market is a market of love. Performance stats, spec sheets, MPG, or other more practical concerns have a role, but it's usually to support and justify buying THE MOTORCYCLE WE LOVE. Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer talk about motorcycle styling, car styling, "covers" on app...

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast Oil seems to be endlessly fascinating to gearheads, so Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer get back into the advantages of synthetic and conventional oils, how engines are lubricated and cooled, and a whole lot more. Learn about "the wedge" and maybe that modern vehicles are "liars"?

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast At its core, Honda tries things. Honda superbikes were established as V-4s in the early 1980s, but when Honda Motor Co. saw Ducati winning with a V-twin in World Superbike, it build a new V-twin engine for the 2000 season. And won. Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer talk about the origins of the RC51, also...

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast MotoGP for the 2027 season will feature 850cc engines, down from the current 1000cc. Aerodynamic aids will be dialed back, and ride-height mechanisms will not be not allowed. There are more rules going into effect than this, so take a ride with us to hear what we might expect in 2027.

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast How have we gotten in wrong with rear-suspension designs? In so many ways! Kevin and Mark take a tour through rear suspension systems that didn't work and never beat the simplicity of the conventional swingarm, plus they get into all kinds of other elements of the chassis.

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast "Dang, them long-stroke engines are just torquier." While this is often true, it's not for the reasons many of us think. Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer talk about Bore and Stroke Ratio and how it influences engine horsepower and torque.

What is a beautiful motorcycle? You know it when you see it? Kevin and Mark talk about beauty of motorcycles both inside and out. We have a lot of the hits--Vincent Black Shadow, Harley-Davidson XR-750, Norton Manx, and more--but they sneak in some unusual stuff, too, all the way to the 1967 Suzuki RK67 50cc roadracer with 17-speed transmission!

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast Purpose-built production racebikes were available and pretty affordable in the early-to-mid 1970s, but humans will race just about anything. So as streetbikes started to improve and the term "superbike" was born, it didn't take long for people to start racing production bikes at local tracks. One of the most famous was...

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcast Motorcycles are just not good when it comes to aerodynamics. They punch a great big dirty hole in the air and do almost nothing to close it behind them. Kevin and Mark talk about moto aero, some historic solutions, and later in the podcast transition to MotoGP aero and related performance enhancing solutions. Tuck in and let's ri...

Find us on Patreon! https://www.patreon.com/cw/CycleWorldPodcastThe Daytona 200 has been the national motorcyclist's rite of spring, but it's more than just the 200--for much of the country it's the first sign that riding weather returns! Kevin and Mark talk about Daytona from early days at the beach, moving to the Speedway, and with lots of anecdotes thrown in. Mark was there for the...

Ducati dropped a carbon-fiber bomb in the form of the 2027 Superleggera Centenario, the most exotic V-4 superbike from Borgo Panigale ever. Perhaps even more far out than the Ducati Desmosedici RR just because there were no "rule" limitations for the new Superleggera. Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer dig into all the details of this beautiful and exotic limit...

Listening to our listeners (and viewers), this topic came from you guys: Kevin and Mark take a look at motorcycle rear suspension starting with "all arm and no swing" rigid frames of the early days to the many variation on the swingarm as we know it today. A sprung saddle is "rear" suspension, no?

How many ways have motorcycle designers gotten it wrong? So many! One of these was chasing an ultra-low center of gravity on motorcycles, only to find it made handling worse! How have we settled on 20-22 inches off the ground for center of gravity? Because it works, and transfers weight on the front wheel during braking and to the rear wheel when accelerating. The right C of G also assists us when...

The motorcycle gearbox can be a great mystery but Kevin Cameron is here to help us all understand how it works. Why do we have six-speeds and constant mesh (mostly)? Kevin and Mark Hoyer also divert into DCT, helical gears vs. spur, and how to make your dogs happy. Join them for another Cycle World Podcast.

Honda made a big impression with its close-firing-order "big bang" NSR500 and became dominant in two-stroke 500cc Grand Prix racing through the 1990s, replacing the "screamer" engine. Other factories followed suit. But firing order on four-strokes also plays a huge role in how an engine works and how it relates to the rider and to traction. How? Join Cycle World Technical Edito...

There have been many engine valve designs since the dawn of the internal combustion engine. What made poppet valves stick? (See what we did?) There were many other designs and some, like the sleeve valve in the Bristol Centaurus WWII radial aircraft engine, that worked very well. Classic Kevin Cameron stuff here as he and Mark Hoyer discuss the relative merits of engine valve types.

The inline-four has many qualities that made it the performance engine format of choice for decades. Ride with Kevin and Mark as they talk about the origins of the inline-four and how we have explored many other engine formats and firing orders/timings, and possibly a few side stories about other things!

We just want to light the fire, that's it! Kevin and Mark dive into all the different ways internal combustion engine builders have found to light the combustible air/fuel mixture. There has been spark, open flames(!), a thing called "hot tube" and more. Even compression can light off the charge, and we'll talk about that too. From magnetos to coil and points to fully electronic...

In the early days of internal combustion engines, pistons were typically made of steel, but it wasn't long before aluminum took over (thanks, W.O. Bentley). But steel pistons and even cylinder heads are coming back in special applications. Kevin and Mark dive in to 3D printed steel pistons, turbo housings, and steel cylinder heads in F1 and other racing. The guys take a deep dive into boost, p...

"Don't want it to come loose!" This is true, but how many mangled fasteners and engine cases have you encountered? More than you'd like. So Kevin and Mark decided to talk torque, torque wrenches, lock nuts, fastener elasticity, sealing, and so much more. And what if you don't have a torque reference sheet for your bike? Learn fastener basics to help you have guidelines for fa...

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!