Motorcycle Design And Technology-How And Why
Motorcycle Design and Technology-How and Why
SIMPLE QUESTIONS OFTEN ARE THE ONES WE DON'T ask. When we do, what at first seems simple turns out to be gravely complicated. So it is with the motorcycle. The apparent simplicity of the two-wheels-with-an-engine system masks the complex physics at work. We mostly take what's happening for granted.
Which brings us to Aprilia’s book about the Hows and Whys of motorcycle function and design. A casual perusal reveals
simplicity.
Chapter one says everyone will benefit from this book, even the most informed reader.
Chapter two points out that motorcycles, unlike cars, tend to fall over at rest unless properly supported by a rider or stand. Quite so. But, really, can’t you tell me something I don’t know?
don’t know?
Why, yes, plenty. Fifteen chapters cover all the major systems, as well as traction, stability, control, straight-line dynamics, cornering dynamics, aerodynamics, vibration (engine and other types) and more. There is a great deal of theory, and plenty of math with Greek symbols (second-degree linear equaziones, for example). If you’re looking for hints on cam profiles, jetting or other tuning tricks, look elsewhere. This is How and Why, not How To. Written by an Italian Aprilia engineer and translated by a dude from The Royal Cambridge School of English, the book uses language that’s so textbookese it sometimes makes your eyes go soft-focus. Your mind wanders and turns toward things like a delicious hot dog with onions and ketchup. You read: “...there is a concomitant variation in the geometrical parameters.. .” You think: Come in Oscar Mayer, come in...
But just when you’re about to head for the ’fridge, sections such as “Highsiding” and “Hints on racetrack powerslides” pop up. There’s even a formula to describe the wheelie, and a section called, “The Jump.” For many, the true depth of this book will be impenetrable. If you muster enough courage to read it and genuinely try to understand, you won’t just impress your friends with your profound knowledge of how and why motorcycles do what they do, you might even impress yourself. Mark Hoyer
Motorcycle Design and Technology-How and Why, Gaetano Cocco, 215 pages, $45; MBI, 729 Prospect Ave., Osceola, Wl 54020; 800/766-2388; www.motorbooks.com
