GSXR's haven't weighed close to 500lbs since EVER! The1000's are now under 400lbs, but at their heaviest, the 1100 weighed in at 430lbs.
Engine: 1299cc, 4-stroke, four-cylinder, liquid-cooled, DOHC, 16-valve, TSCC Bore Stroke: 81.0 x 63.0mm Compression Ratio: 11.0:1 Fuel System: Keihin/Denso Fuel Injection Lubrication: Wet sump Ignition: Digital/Transistorized Transmission: 6-speed, constant mesh Final Drive: #530 chain Overall Length: 2140mm (84.3 in.) Overall Width: 740mm (29.1 in.) Overall Height: 1155mm (45.5 in.) Seat Height: 805mm (31.7 in.) Ground Clearance: 120mm (4.7 in.) Wheelbase: 1485mm (58.5 in.) Dry Weight: 217kg (478 lbs.) 218kg (480 lbs.)
This is from the Suzuki website. Somewhere in my posts I said Hayabusa....if memory serves.