Hi!
I am approx 200 pounds and ride on some terrible roads. My Ridley Excalibur came with Fulcrums 7 and I anticipated upgrading the wheels asap! However, I have been pleasantly surprised at how durible the Fulcrum wheels have been. I have (unfortunately) hit many potholes, rocks and other unexpected debris in the roadway over the last nine months and the wheels are still as round and true as they were brand new!