I know, it's great he can build! He's currently working on a titanium single speed and I'm beginning to think maybe I should have a titanium bike? The list could be endless. But with my new bike I'm kind of getting two new bikes, I'm going to turn my old bike into a singlespeed (something I've never done). Everyone I know with singlespeeds love them, I'm still thinking of how that will feel on the knees.