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MotorcycleUSA Superstore
The Eclectic Biker: August 2003

by John Inama
Associate Editor
Beginner Bikes Magazine

Designing The Great American Sportbike

2003 Buell BlastIt saddens me that there's no such thing as an American sportbike. Yeah, I know, what about Buell? I'm sorry, any bike based around a 40-year-old engine is not a true sportbike, no matter how well it handles. A true American sportbike should be able to go toe-to-toe with the best from Honda, Suzuki, Ducati and the like, in performance, style, technology and price.

Don't get me wrong -- Erik Buell is one of my heroes. He's a brilliant engineer, and a true visionary in the motorcycle world. Too bad he hooked up with Harley. Not that there's anything wrong with Harley per se, but they're not the company to join forces with to design a state-of-the-art bike. Harley-Davidson is steeped (some would say mired) in tradition, otherwise known as "old stuff." Old doesn't cut it in the cut-throat world of modern sportbikes.

I want to follow in Erik's footsteps, without making his mistakes. I want to build the American sportbike. Unfortunately, I'm just a poor journalist, and I won't have my engineering degree for a few more years. So, here's my plan (are you listening, Polaris?) to be stolen at will. The only thing I ask for are some royalties, and an engineering job after graduation. Of course, if these plans go unclaimed, I still reserve the right to try it myself.

First, to keep costs down (I'm writing this under the premise that it's a start-up company), I'd make the chassis out of steel. I'd make it a trellis-style tube frame, similar to a Ducati but of my own design. This frame will be modular, to eventually be used in a naked bike and a sport-tourer. I'd also use a double-sided swingarm, again to ease costs.

Engine-wise, I'm thinking inline-3. Why? Well, the V-twin is used to death, and I want something with character. Also, this bike will be raced (AMA Superbike, at least) and the 3-cylinder configuration will split the difference between the low-end torque of the twins and the high-speed advantage of the inline-4s. The engine, too, would be modular, as a twin-cylinder version will be used to make a middleweight bike (750cc twin to compete with 600cc fours). This bike, too, will be raced, although it may not have too much of an advantage over 600cc fours.

Of course, it will be a water-cooled, twin-cam, four-valve design, and it should be fuel injected, although that may depend on cost. It'll also have a 6-speed gearbox, chain drive (the obvious sportbike stuff) as well as high-quality suspension and brakes -- higher quality on the race replica (I'm thinking Mille R here) and not-quite-as-high quality on the more pedestrian version.

I'm also all for mass centralization, a la Buell and Honda. Although the chassis isn't designed yet -- that's something I'm saving for a senior project -- I'm sure I'll toy with some sort of low-mounted gas tank, even a tank under the seat, if it's possible. The riding position should be race-ready, but also moderately comfortable for all-day use. It'll still be a bit extreme, but not as much as a GSX-R or 996.

As for the looks, I admit I'm no designer. I'd probably turn the bodywork over to a professional. Maybe, if I get lucky, I can make one myself that looks half-decent. But I don't want to take any chances.

So there it is -- the Cygnus X1. Designed and built in America. I hope.




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Recommendations made by Beginner Bikes Magazine, it's staff, team members or riding club officers, are based on the skills of a novice rider, of average stature and do not necessarily represent the ideal for every rider. While Beginner Bikes encourages safe, smart riding, we do not assume responsibility for each individual. Please ride with care at your own risk.