But not sure they would work on my oversized seat tube. Also, not sure I want to clamp something around these beautiful tubes. Has anyone had a set of mounts drilled/brazed on? I would think an aluminum frame builder could manage this but wonder how much is involved. The bike is aluminum, smallish as a 52 cm semi-compact but a second bottle should fit. Any advice is appreciated, thanks.
It's not too difficult, indeed some shop mechanics will offer to do it <shudder>, but a framebuilder should be able to do it right for not a lot of cash. In the mean time, look at some of the seat mounted jobs to get you through.