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Seat post slipping down
Yes, my 90-odd kgs is to blame but I have a continuing problem with my seat post slipping down. The clamp is super tight so that is not the issue and I just do not know how I can stop it from slipping down. To prevent all sorts of horrible creaks the seat post has been lightly grease and I assume that this is going to add to the problem. Is there something else that I should be using, is there a loctite type product that would be useful in greasing the post to stop creaks but also helping it stay in place? During the Husky I essentially had to tighten it to ridiculous lengths and then belt the clamp shut with a spanner at one of the feed stations.
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What type of frame daveh, carbon or metal?
If it's carbon you can get specific carbon grease that helps grip the post so that you don't have to over tighten the clamp, I'm not sure if it works as well on metal though
There's a grease in a red sachet (name escapes my mind) but it is designed to stop slippage. Works a treat and I use it on all my bikes and only torquing the seat clamp to 4nm I get no slippage.
I'll update the name tonight if no one beats me to it.
Had done a search of CRC and Wiggle found nothing but just searched JensonUSA and it sounds like this is the stuff - http://www.jensonusa.com/store/product/CM407B09-...? The description says "Carbon seat-post" but on the packet it says "for carbon and aluminum (sic) components" so will give that a go. Thanks for your help.
Found it. It is Ritchey liguid torque which looks like the same stuff in you link. I use this on Aluminium and carbon seat posts.
http://www.chainreactioncycles.com/Models.aspx?M...
Awesome, im going to get some if it works that well! My clamp is super tight and I drop 10mm over one lap at mt Annan and 20mm halfway through the oaks. So frustrating!
I also put it on my seat rails as I had issues of my seat slowly slipping back on and old seat post that just had a one bolt fixture.
You could always get one of these
http://www.compulsioncycles.com/index.php?route=...
Thanks Brian, that is getting added to my order of replacement parts required after the Husky!
If you place the palm of your damp hand onto the dirt then grab the seat post with it your should transfer sufficient grit to then ensure it won't slip when you slide it back in (assuming you have the correct diameter seat post for your frame!).
They should be a reasonable tight fit sliding them into your frame so you shouldn't need much force at all from your seat clamp. I have a carbon post on an aluminium frame and use 3Nm torque on the seat clamp bolt.
what condition is your clamp in? It might be buggered. Do you move the seat up and down depending on the trail? If not, get a bolt up clamp. if it is buggered and you do constantly change the post height during rides, just get a new QR clamp.
Also, make sure you put a bit of lube in the clamps moving parts to ensure than the pressure you put on the leaver isn't masked by the friction the moving parts are creating.
Clamp is almost new so no issue there. I'm going to try to liquid torque since I'm buying a few other things anyway and it's reasonable cheap and I can't ride my bike until I have everything in that order anyway. Thanks for the suggestions.
The very cheap alternative to carbon paste is toothpaste. Use the stuff with 'micro granules'.
It works perfectly, is easly available in large quantities, and also has the added benefit of making you bike smell minty fresh.
I'm not pulling your leg, its a perfect alternative.
See - that's why I love this forum. Top info. Plus, if you use toothpaste you can call it "Titanium Dioxide Enhanced seat post paste" and who wouldn't want some of that action
Which one should we go out & buy because my seat slips back during most rides & if I tighten it anymore I might break the carbon seatpost
I honestly cant remember - and its too cold to head out to the garage.
However, its a Colgate one for 'whitening'. I cant remember exactly the name.
The risk is low though - buy it, use it, and if it doesnt work, take it to the bathroom and continue its use on your teeth.
I use it on both my road and mtb bike, on stem / steerer, stem / bar, and also seatpost. I do the same on Jenny's (mrs antsonline) bikes.
It really does work.
Spearmint or peppermint?
+1 for Ritchey Liquid Torque.
Couldn't get the CF seatpost on my hardtail to stay put for love nor money, and put so much force on it I ended up rounding out the hex-head bolt on the bolt-up clamp
A light smear with some of the Ritchey grease, and I could get away with under 6Nm easy. Lurvely.
Cheaper than toothpaste as well, repels moisture so your post won't seize in place, but sadly it won't whiten your teeth.
@ Smiley - Mate, I'll try and remember to bring some of the Ritchey paste with me this weekend. I used it on my carbon Rush with the FSA carbon post and it worked a treat.
I now run a thomson post in my rush. no slip.
Found it extremley cheaper here
http://www.probikekit.com/au/tools-maintenance/b...
I was just about too grab my toothpaste for the weekend to take thanks for reminding me , I will be there when the sun is up ..