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Can't seem to clamp it up tight enough all of a sudden no matter how
Frame ? Post ? Clamp ?
Not something daft like the clamp "bottoming out" is it ?
On my Spicy with the cheapo stock clam, the teflon coating on the bushing wore away and the clamp was having to run against thet metal backing of the bushing. I couldn't tighten it up tight enough because of the extra friction from the clamp. I got a new seatclamp with a solid brass bushing and it's all working fine again now. Hope and Chromag both use brass bushings in their clamps.
takisawa2 - Member
Frame ? Post ? Clamp ?
Not something daft like the clamp "bottoming out" is it ?Not quite sure what you mean by bottoming out?
I've just tried fitting a new Hope clamp and it's doing the same??
I did grease it a bit back but as i say it's only just started doing it...? I even tried putting a glueless patch in the tube but it just gets peeled off when i re-insert the seat-tube..??
I had the same problem.
Take the clamp apart, clean off with WD40 or similar.
Put back together and put a little lube on the bush. It should be possible to clamp it up tight enough to hold your post.
by any chance is it a On-one 456 steel. mine is the same with a Easton EA50 post. I managed to get a clamp from a carbon post which clamps onto the post itself. that sorted it.
try a bit of carbon assembly paste, even if it is a metal post / frame. sorted mine out. the rough paste helps it grip
1/ Go to a bolt up, you can get them tighter
2/ Some seatpost / tube interfaces are a little loose. Ragley make a 27.3mm in case it's a 27.2 seattube, as these seem to be the most common culprits
3/ Try some carbon paste instead of grease. Not cheap but lasts forever.
Sorted it! - sprayed some degreaser down the seat tube, then cleaned it out with a rag, did same with post and lubed up the bushing and thread of the qr.
Seems nice and tight now! Thanks all had me scratching my head that one.
I'll def bear in mind the carbon-paste in mond for future, that's one idea I def would not have thought of simply as it's an alu frame!
BTW it's a Spesh Pitch frame.
Cheers again all - just need to get bushes sorted now! 😀
As a last resort, try something like one of these:
[url= http://problemsolversbike.com/products/double_klamp_seatpost_clamp/ ]PS Double Clamp[/url]
[url= http://www.feltbicycles.com/USA/2012/Parts/road/Double-Seatpost-Clamp.aspx ]Felt Double Clamp[/url]
I think that they're mainly intended for carbon seatposts, but don't see why they wouldn't work with an aluminum one.
+1 for caron assembly compound - sorted out the slipping seatpost on my hardtail!
By the way, when I baulked at the rediculous price they charged for a little sachet of the stuff, my LBS suggested I just mix some sand in with normal grease for the same effect at a fraction of the price 😯