My experience...

I'm 6' 5" & 108kgs...someone else can do the math. But I exert a fair amount of force and leverage on wheels.

I was on a set of RS10s that came stock with my supersix. They were fine...more than fine. I busted 1 spoke in 18 months and had didn'd have to have them trued (apart from the busted spoke). I reckon us big blokes worry too much about finding strong wheels, high spoke counts, etc...as I said a looooooooooooooow end stock shimano wheel was fine for me for 18 months.

But, like most of us I wanted an upgrade. I got some Mavic Ksyrium SLs and was blown away with the difference I felt.

No, I don't race. No, I don't intend to race and I hate that argument. You reckon everyone with a Ferrari is a racecar driver? Anyway...

The SLs are awesome and bulletproof, super fast and very light. I'd highly recommend them.

I got them in the black too...super sexy.