Laitch, wow, that's a lot of extra weight on the K11!
Kaopono, Thanks, that's the kind of opinion I'm looking for. My situation is a bit different in that I am comparing a 16v K100RS to a K1100RS. At first glance, the only difference between them is 100cc and the lower fairing panels. Engine output specs seem to be similar with little advantage to the larger K11.
Moby Brick, being a 16v had the wide wheels and radial tires, and yes, it handled a lot differently from my K75's with narrower bias ply tires. This was most noticeable on rain grooves which are becoming more prevalent in the areas where I do most of my local riding.
You mention the ABS, was it the ABS 2? I have heard that the early versions had issues and were harder to bleed. Unless I get a '93 K11 I am looking at the ABS 2. Having lived with three bricks with ABS 1 I feel pretty comfortable with it, and have been able to resolve the few faults that came up with minimum fuss.
I am curious to hear about exhaust cracking. My old RS came with a Remus exhaust, and I had learned that there were 3 exhaust failures in the first 4 years and 16,000 miles. The loud sound of the remus was annoying, so I replaced it with an exhaust from a late 80's K100 that worked very nicely with no negative change in engine performance.
The drive shaft on Moby Brick had 126,000 miles on it and was in excellent condition right up to the end. I hope to be able to salvage it as a spare. On the other hand, there seems to be a fair bit of u-joint failures on K11's, with a number of failures occuring in less than 100,000 miles.