Awesome machine, Chico!
I'll just add that 18 lbs isn't King Kong. There have been many entries in this forum(s) of people around the 280 lbs range riding, happily and for many years, on Mavic Open Pro rims. They are pretty much bullet-proof, but somehow the larger gentleman have gotten the idea that 150 lbs is the cut-off for skinny wheelsets. May I suggest a visit - and any other questions about weight limits - to:
http://www.bikeforums.net/forumdispl...s-200-lb-91-kg