I have 2 seatposts, both 26.4, both are really tight . I don't even need to tighten the seat collar. It's that tight. It gets worse the more i insert the seatpost. It's worse w/a suntour, less w/ the syncros.
Any idea on what's going on and how to fix it?
Ok, what does the inside of the seat tube look like ? is it clean or is it full of crud.also is the dia of the seat post what it says it is.?if you had a simple ball hone is good to clean up the junk and not that damaging if you make a mistake. just dont get to crazy cause you can take thousands's of an in in a hurry. but i would suspect the diameter of the two seat posts are different. some verniers will tell you that in a hurry! good luck
I would run a ball flex hone thru it first.not a big fan of seat tube reamers. a little aggressive and your frame is in a world of hurt.a ball hone will clean up any imperfections.
Now there could be the possibility of when the seat tube was welded the weld blew thru enough to create a high spot in the seat tube and that is when the reamer will come in handy.id try step 1 first. just my 2 cents
Thanks. I will go w/ those sugestions. Bought it used and the seller told me about it. He thought the tube was deformed at the seat collar due to manhandling but the issue starts 1in inside. everything seems fine and then it isn't.. one of those.
since i forced the suntour post to move up and down(w/lots of Park Tool grease applied), the syncros moves much better now. The suntour still feels ultra tight though.. that's a good thing though i can't still figure what to do next. Find an even thicker post and repeat? 26.4 is a bitch of a size to find samples.
Seems like there are no spots.. it's all around tigh but much better since i massaged the tube w/ a thicker post. gut feeling says it's all there is to be done. I am not a fan of drastic measures on frames. at least it's not a slipping seatpost that needs constant readjusting.. aaaarrgh!