nthnleo

o.o this is deep

rustybrown

so

m4rx12

Yeah I did the same thing to my Peugeot yesterday. This should only be done as a last resort cause you can seriously mess up your frame. I also filed down the inside of the seattube and outside of the seatpost to ensure the right fit.

Civilian.D

perfect post/sig combo

deleterious

Coincidentally, I also had to this today to the Shogun. The collar was still too pinched after the screwdriver treatment AND the filing down so the LBS owner busted out his new variable-diameter reaming tool and took a little bit off the inside, now it slides smooth as silk. I would like to find the person who used a too-small seatpost in the first place and slap them around a little.

Haha.

eta: I forgot, he also used an old quill stem to do some of the initial widening, just put it in the seat tube right at the top and expanded it slightly. That was a new one to me. Seemed a little dangerous to the tube but it didn't end up doing any damage.

Chad1376

Assuming the inside tube diameter is a tiny bit below spec - not bent or ovalized, I'll bet a brake cylender hone would work..kind of like the scotch-brite idea, but with more "balls". haha. I've used one to clean rust from a rusty seat tube. They are available at your FLAPS for about $10. Use with plenty of WD40 or PB Blaster. LOL

thelastleroy

This is the pro way to do it. I would have suggested this earlier, but OP mentioned he was novice at best with tools. If that mother pops out of the tube while it's spinning on a fast drill there could be some damage to persons or property. I don't want a 17-year-old claiming that because of advice he got on these forums that he lost a digit. That said, a cylinder hone will produce a very fine finish and is pretty easy to keep evenly cutting if you work it up and down frequently.

Oh, and Haha