That's weird, the Trek Alpha Aluminum and OCLV Carbon/ ZR 9000 WSD's in the 43 and 47 sizes look like they should come with 650 wheels. I know my 2100 WSD did...Maybe you should check- I just read that one of Lance Armstong's Treks came with the fork from a different size frame on it, and it was a mechanic that spotted it...

Nanci