i can fit the seatpost in, allthough with a little work.
If that refers to a 27.2 seatpost then your seat tube is 27.2. I suggest that you take it to a shop and get it reamed to 27.2.
@yoav started
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If that refers to a 27.2 seatpost then your seat tube is 27.2. I suggest that you take it to a shop and get it reamed to 27.2.