Mechanics and Fixing Any Questions Answered

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Aroogah
Seat tube query for the hive mind. I have a frame with a 27.0 seat tube and want to use a 27.2 seat post (because dropper). Frame is alu and calipers measure the wall thickness at 2.45mm.

Two questions.
1. Is reaming out the tube possible and / or advisable?
2. If yes to question 1, is that something a workshop can do? or is that something for a frame builder?

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gbj_tester in reply to @Aroogah

Is reaming out the tube possible and / or advisable?

Many aluminium frames use a 31.8mm OD seat tube with a 27.2mm post, so the real surprise is that yours doesn't already

I'd take it to a frame builder because they're the people who will have a 27.2mm reamer

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Aroogah in reply to @gbj_tester

2002 Frame so the sizing is not up to more standard standards. I'll see if a 27.2 fits, if not then I'll work something out.

Thanks tester.

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