27motorhead
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27.0mm DIA - Original Tioga seatpost
Check to see how far down it does before it gets tight. It may the where the brace on the seat stays is welded against the back of the seat tube and depending on the amount of penetration, the weld may have come through onto the inside wall of seat tube or caused a small amount of distortion.
Clean out seat tube as best as possible and then look to run a 27mm DIA reamer down it, or an expandable reamer set to 27mm DIA. If you go to a bike shop they wouldn't want to chuck a reamer into a dirty seat tube to prolong life of blades/cutting edges.
Check to see how far down it does before it gets tight. It may the where the brace on the seat stays is welded against the back of the seat tube and depending on the amount of penetration, the weld may have come through onto the inside wall of seat tube or caused a small amount of distortion.Clean out seat tube as best as possible and then look to run a 27mm DIA reamer down it, or an expandable reamer set to 27mm DIA. If you go to a bike shop they wouldn't want to chuck a reamer into a dirty seat tube to prolong life of blades/cutting edges.
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