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American Beauty

Three years ago, architect Michael Czysz set out to build his dream motorcycle. The radical C1 990 is the result--and it couldn't be more unorthodox. Alan Cathcart tells us how the prototype works
From the February, 2009 issue of Motorcyclist
By Alan Cathcart
Photography by Kevin Wing
2005 Czysz C1 990 Side Lean View
2005 Czysz C1 990 Side View
The hype surrounding the C1... 
   
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2005 Czysz C1 990 Side View
The hype surrounding the C1 and its supposed MotoGP intentions has been hot and heavy these last 12 months, and has ignited plenty of discussion and controversy. Still, there's no denying the bike's aesthetic appeal and technical credentials, which include its narrow-angle 998cc V-four and new-think front and rear suspension systems. Top: Moto Czysz's Yamaha YZF-R1 test mule, fitted with the C1's 6X-Flex fork, awaits new tires after the author scorched a set during testing at Las Vegas Motor Speedway.
2005 Czysz C1 990 Front Side View
2005 Czysz C1 990 Side Lean View
2005 Czysz C1 990 Rear Side View
Cathcart at speed aboard the... 
   
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2005 Czysz C1 990 Rear Side View
Cathcart at speed aboard the R1 test mule. Right: Although rake on the C1 is set at a fairly radical 22.5 degrees, trail is adjustable from 89 to 110mm via spacers that hold the axle. What's more, front-end damping and preload--as well as spring rates themselves--can be changed due to the Oehlins shock's easy access. The three-quarter view sans bodywork shows the bike's narrow build and relatively longish 56-inch wheelbase. Claimed dry weight is 401 pounds, a bit on the chunky side, though Czysz says that will come down as the bike nears production.
2005 Czysz C1 990 Front Left Lean View
2005 Czysz C1 990 Front Side Lean View
2005 Czysz C1 990 Wheel View
2005 Czysz C1 990 Rear View
2005 Czysz C1 990 Badge View
2005 Czysz C1 990 Rear End View
2005 Czysz C1 990 Top Front View
With its engine positioned... 
   
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2005 Czysz C1 990 Top Front View
With its engine positioned longitudinally in the carbon frame--that is, rotated 90 degrees from a typical transverse configuration--the C1 features a 250GP-like midsection. Modified GSX-R1000 fuel-injection parts are mated to a custom CPU route mixture to the narrow-angle V-four, which--for now, at least--uses GSX-R top-end bits.
2005 Czysz C1 990 Fix View
2005 Czysz C1 990 Side View

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