Metals are absolutely key to our good times on two wheels. Steel, Aluminum, Chromium, Nickel, Copper, Brass, Magnesium ("electrified dirt") and all the alloys make up our most loved form of transportation and good times. As ever, CW Technical Editor Kevin Cameron knows a lot of key details which he shares with Editor-in-Chief Mark Hoyer and the rest of us. Thank you for all the support of the podcast and please let us know in comments what you like and what you don't—but leave Hoyer's headphones out of it... :)

What are opening and closing ramps on a camshaft profile and why are they so important? Why do we use nested or beehive valve springs? When is it best to use pushrod valve actuation or DOHC shim-under-bucket tappets or finger followers? Should we drive cams with gears, chains, or belts? Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer (but mostly Kevin...) talk about the intricate details of opening and closing valves and different types of drive systems.

A long-time US KTM employee described in the early days when the head of the company mortgaged his house to buy some box vans. Contrast this to KTM's American HQ opened in 2023 that cost $53 million and racing on the world stage from hard enduro to MotoGP. Yes, a lot has changed for KTM, once the builder of quirky dirt bikes but now making every kind of motorcycle with an obsession for high-performance and light weight, and growing across brands that include Husqvarna, GasGas, MV Agusta, and ebikes under the Pierer Mobility umbrella. Where did KTM come from and where is it going? Listen to take the ride with Kevin Cameron and Mark Hoyer.

Moving the problems! Alternative front suspension has some advantages over the telescopic fork that's on nearly every motorcycle made today—front swingarms, Hossack, RADD, Troll Engineering, girder—but these other designs never take over. Some problems are solved, but new ones emerge! Technical Editor Kevin Cameron has seen them all and Editor-in-Chief Mark Hoyer has ridden many. Why does the telescopic fork keep winning? Listen to the Cycle World Podcast to find out.

The amazing journey by Butler & Smith BMW to build championship-winning superbikes out of BMW flat-twin touring bikes in the 1970s. First 750cc, then 900cc, we look at how BMW won the 1976 AMA Superbike Championship. Editor-in-Chief Mark Hoyer joins Technical Editor Kevin Cameron, who recalls his time with builders Udo Gietl and Todd Schuster to explain the amazing transformation of these motorcycles into the remarkable high-performance machines they became. Unbelievable detail here, folks.

Ducati is more than just a motorcycle brand to many, bordering on religion—or as its detractors might say: a cult. The CULT OF DESMO! Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer start with the early days of Ducati's singles and move through the inception of the Desmodromic valve train, the first 90-degree V-Twins, and the racing success that followed. Ducati today is built on a constant state of revolution and evolution. The duo discuss the brand that is nearly synonymous with the color red, Italian style, and racing performance. Join us!

Motorcycle minds were blown when the 1973 Kawasaki Z1 debuted with its 903cc engine, double overhead cams and burly styling—and Team Green's four-cylinder superbike was born—in rootbeer brown! Did 40-hp Triumphs ever have a chance? Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer talk about the Z1's origins, how it compared to the Honda CB750, and the marketplace the bike entered, including facing off against Kawasaki's own two-stroke triples. The guys wander off a bit on this one and coincidentally heard the same crazy superbike race announcer at Monza more than a decade apart! (Really, it's a cool story.) There's a moment on Harley-Davidson steering philosophy that's at least peripherally related, and a little about the death of the two-stroke, plus so much more. Join us!

Honda's NR500 GP racer and NR750 endurance racer and 1994 $60,000 streetbike launched a million dreams but were failures in the grand scheme. The bikes were beautiful innovations and technical striving during a magic time at Honda when the company explored anything that seemed possible. Learn more about the 8-valve-per-cylinder four-stroke V-four that acted like a V-8 and aimed for 22,000 rpm in racing form. Technical Editor Kevin Cameron heard the NR500 at Monza, and Editor-in-Chief Mark Hoyer, like many, bought a 1995 Honda VFR750 because it had echos of the NR750. Listen now to learn about these amazing motorcycles and their oval-piston engines!

We're taking a flyer on this one but we couldn't resist talking about AIR! True to form, Technical Editor Kevin Cameron starts talking about us breathing and how gravity holds air on the earth ("Which is really good for us.") and we take it from there. Poppet valves, pressure waves, exhaust and intake tuning, and so much more. Ever heard of an Aspin valve? Rotary valve? Sleeve valve? You can say yes to all those if you just have a listen to this week's Cycle World podcast. Join us in the air!

Dynasty? Franchise? Legend? Yes! The Honda Gold Wing was born "naked" in 1975 as Honda's first liquid-cooled model. The entire Cycle World road test issue said "Gold Wing" only one time but now it's the name that everyone associates with technical luxury touring and the Gold Wing has won an amazing 25 CW Ten Best awards since its introduction. Technical Editor Kevin Cameron and Editor-in-Chief Mark Hoyer talk about how the Gold Wing entered the market and how the consumer drove its evolution into the full-rig luxury mile-eater it is today. They'll even tell you about the box truck with seat factory that was used to make new seats overnight during development!