"John Whittingham" <[EMAIL PROTECTED]> wrote:

>From: Mark Roberts <[EMAIL PROTECTED]>
>> 
>> There's a prize for anyone who can identify *this* bike:
>> http://www.robertstech.com/temp/jakesbike.jpg
>> ;-)
>
>Harris framed Suzuki GS/GSX?!

Close. Well, close only in the sense that it's a custom/hybrid.
It's a "JF 1200". JF stands for "Jake's Frankenstein". Built by two-time
WERA Vintage 5 nat'l champion Jake Coye. Vintage 5 is a racing class for
big 1980's in-line fours with too much horsepower and bad handling.
Think CB 900, GS 1000, KZ1000.

Anyway, the JF 1200 consists of:
Frame (modified and braced) - Ducati 750 of some sort
Engine - Yamaha FJ 1200 (bored out to 1300cc)
Swingarm - Kawasaki ZX 11
Rear wheel - Suzuki GSXR 1100
Entire front end - Yamaha R1

Odds and ends: Kehin 40mm flat slide carbs, headlight from a Suzuki GS
1100, Ohlins shocks, Yosh pipe and custom hand-formed aluminum gas tank.

Jake had help with the frame from a friend who's an engineer at Delphi
automotive (formerly GM Delco). I can report that this bike handles
*beautifully* and goes like hell too!

-- 
Mark Roberts
Photography and writing
www.robertstech.com

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