Originally Posted by Rovinato

I'm 300lbs and I rode the same Specialized Roubaix for 7000 miles until I was hit by a car a couple months ago and the frame was too damaged to repair. I also rode Mavic Ksyrium SLS wheels for three years but while light and nice to ride, they weren't robust. I've since been riding HED Ardennes Plus wheels and a really nice set of Williams 31 wheels (28/32). Neither the frame nor the wheels is rated for someone my size, but I've never had a problem. I think weight limits are for manufacturer liability more than anything and often on the conservative, low end of what's safe to ride. I'm currently riding a 91 Moser Leader AX with Mavic Open 23mm rims and I've not had any problem with that frame or wheels either.