I have the opportunity to purchase a 2001 Klein Quantum Pro off craigslist in about 3 hours (this). I already talked him down to 600$, but he couldnt really tell me anything about it on the phone, and I have been able to find next to nothing on the web. So here I am. Does anybody have any info on these frames? Is it one of those super cushy aluminum jobs I've been hearing about (with carbon stays I hope)?? No carbon stays and I'll offer him 5 hundy I think. . . the wheels arent stock so theyr'e a crapshoot. Thanks for any info guys! I'll be sure to post pictures if/when I buy her!