There are 9 photos of the R1150GS, with matching photos of my '95 R1100GS to make comparison easier. The R1150 photos were taken with an Olympus Stylus point-and-shoot camera and digitized via a scanner. The R1100 photos were taken digitally at 1600x1200 via an Olympus C-2000Z and reduced to 320x240. You can click on the photos to get a slightly larger version (640x480).
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There are a few more photos on the Web at MSN Car Point, and an informative review on Motorcycle Online.
Here are some links to more R1150GS info: