Thanks for the info so far. Let me clarify a little. I have a geared Salsa Campeon that I ride but I'm looking to build a SS to ride some too. I live in central VA where it's pretty hilly. I'm smaller & lightweight so usually I am a good climber. I would like the SS I build to be light and responsive to pedaling input. That's why I am thinking aluminum-carbon is out of my price range as well as custom steel. Are there any aluminum SS dedicated frames that use a 130mm rear wheel, maybe with sliders for tensioning? I don't want to use a tensioner, I did that on my mtb & didn't like it. Again any direction would be appreciated.