Well, it has a Columbus Nivacrom sticker, however the Roberts website says that the Audax Compact is made from a mix of Columbus and Reynolds tubing (probably 853, since that's what the standard Audax is made from). That's the current range though, and mine was made in 2004* so maybe the tube mix has changed since then. I'm assuming a mix of Nivacrom and 853 for now.
(*a guess from the frame number, since Roberts didn't answer my email asking about it! I should really phone...)
Well, it has a Columbus Nivacrom sticker, however the Roberts website says that the Audax Compact is made from a mix of Columbus and Reynolds tubing (probably 853, since that's what the standard Audax is made from). That's the current range though, and mine was made in 2004* so maybe the tube mix has changed since then. I'm assuming a mix of Nivacrom and 853 for now.
(*a guess from the frame number, since Roberts didn't answer my email asking about it! I should really phone...)