I sent an email to mr Rolf Dietrich and referred him to this thread.

That said, Trek no longer uses Rolf wheels on any of there bikes, im sure that 75%+ of all rolf wheels sold were OEM on the Trek, Klein, LeMond, and Fisher bikes. IIRC USPS used rolf wheels, but soon changed due to problems with the vector pro rims.

I have '99 Vector Pro's on my Klein Quantum Race, and love them. There stiff, fast, and light. I hope i dont have any problems down the road...