- seat post slipping – am i going crazy – its making me mad!
Had an epic meltdown today due to seat post slippage – guatanteed to make me see red.
Tips to stop this welcome.
Yeti asr5 frame, salsa QR, Thompson elite post.
Possibly the most annoying thing in the world!
N.b. why dont they put measurements on posts!
N.b.b: Alternatively is this a psychological flaw and its all in my head.Posted 5 years agospooky_b329Member
I had this problem, despite doing the qr up as tight as I dared, the ungreased post would still slip. I realised the cam on the quick release was riding up out of its seat slightly as it was tightened, and then at some point it would click back and loosen off. I replaced the qr but I suspect greasing the cam would have fixed it by stopping it from moving as it was tightened.Posted 5 years agohughjayteensMember
My epic does this too! Never had the problem on any other bike bit however tight I do the qr it always slips down to the same place on the post. It’s the standard specialized post so has markings – I start off at 7.5 and it always slips down to 5. I has assumed it was a cheap post that wasnt completely straight or had a slight bulge at the 5 marking?Posted 5 years ago
Thanks for sharing and all your useful tips will take another look – good clean and carbon grease may be a first step if that doesn’t work maybe a go with the fine grade sandpaper.
Thanks for the offer bencooper but i’m in brighton – its not quite that annoying but close.Posted 5 years agomcbooMember
I was tightening to death a QR clamp on a Thomson post….small dab of CARBON PASTE and now hardly have to apply much pressure on the clamp. Used to drive me mental, I feel your pain.
PS I also swapped to an excellent Chromag QR clamp but I think the game changer was CARBON PASTE.Posted 5 years agotimb34Member
Just to add a different suggestion – instead of degreasing the seatpost, have you cleaned and lubricated the seatclamp?
I thought I was doing up mine dangerously tightly, but the post still slipped. Eventually I cleaned & oiled the seatclamp cam and I could close the thing more easily and tighter.Posted 5 years ago
paceman – secret training – well yes if the effing seatpost hadn’t kept slipping – spent more time swearing at the bike as i slipped lower and lower rather than getting those sneaky miles in!!!!
nb have you got any carbon paste as per the various suggestions to avoid a follow up tantrum on sunday!Posted 5 years agoalandavidpetrie79Member
+ 1 for Carbon paste: £2.99 delivered!Posted 5 years agomcmoonterMember
mcmoonter – did you do that?
Yes, it was an Easton EA70 post I’d had from new. I centre punched it to mark the post height. It was fitted to my cx bike which I mostly rode on the road. It snapped without warning on a road ride in the dark without warning. It dumped me on the road at 20mph. Thankfully there were no cars around.
You can see where the stress fracture went through the punch mark.
Posted 5 years agomotormanMember
I too have had sadness with this.
My solution was to use strips of aluminium foil tape along the length of the seatpost where it is installed to the frame.
Make sure the clamp is fully slack & carefully insert the seatpost. Most of the tape will be scraped off, but what is left will act like a full length shim, perfectly filling the gap between post & frame. Tighten clamp & clean off foil shavings & ride to happiness.
Posted 5 years agoglobaltiMember
If there’s enough clearance you could shim it with a piece of aluminium cut from a soft drink can. Makes and ideal shim for this, soft, malleable, already curved, sticky and cheap. You can even bend the top over to form a lip to stop it slipping down inside the seat tube when you remove the post.
The best solution is a second seatpost clamp fitted to the post above the seat tube. A crude version would be a simple hose clip but you might be able to find a proper bike clamp that will go small enough.Posted 5 years ago
Thanks everyone – surely with all this quality advice i can resolve my seatpost issues.
Funny how this resonates with so many of you.
I thought having a salsa clamp was the end to this chapter of my life -it was flawless on my 575 – no movement at all with very little tightening – change to the asr5 and it starts again.
I personally can change from a mild mannered janitor into a raging lunatic at the mere hint of this affliction, real or imagined.
Do any of you display these symptoms.
DCPosted 5 years agomcbooMember
Salsa clamps are very good, I doubt thats your problem. Also Chromag and one that came from Canyon you hardly need any tension as long as you use ****** *****
And Hope seat clamps are best avoided…..you end up tightening them like crazy, I dont know whats up with them.Posted 5 years agopixelmixMember
I had the same problem with a Thomson post. Changed the QR for a bolt up and it still slipped, to the extent that I had to stop repeatedly during the Selkirk marathon to put it back up.
Stuck some toothpaste on the posting around the clamping area, bolted up the clamp silly tight and it hasn’t budged since.Posted 5 years ago
The topic ‘seat post slipping – am i going crazy – its making me mad!’ is closed to new replies.