Cycle World Podcast

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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.

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"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!

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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 Cook Neilson and Phil Shilling's Cycle magazine Ducati was born as the California Hot Rod, while Butler & Smith BMW's Udo Gietl turn the R 90 S into a race- and championship-winning bike. Kawasakis and more hit the race track, too. At first, modifications were limited, but once the first AMA Superbike Championship was launched in 1976--an idea and its class rules born on an empty California apartment floor in 1975 between John Ulrich and Steve McLaughlin--the motorcycles evolved quickly. Join Technical Editor Kevin Cameron and Editor-in-Cheif Mark Hoyer for a discussion about the birth of the Superbike.

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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 ride!