Someone is selling a used set around here for $130, with a 9sp ultegra 12-25 cassette included. I currently have heavier wheels, which can't fit tires narrower than 700x28 on my road/touring focused bike...

How fragile are the Mavic Ksyrium Equipes, and is it a good deal for a second wheelset?? I figure I can keep the beefier ones for touring and/or rough weather/rough road situations or for use on a trainer in the wintertime...

Too flimsy for a 200-plus pound dude?

Good deal or no?