Slippy seat post (but not the usual kind of slippy)

I recently bought a seat post and the seat keeps slipping backwards (this happens quite a lot from jolts etc as the roads where I live suck)

I've tightened it pretty damn hard but it seems to slip really easily - anybody had this problem before?

Tighten it tighter, using a longer-handled allen key.

yup

k - just bodged myself an extended allen key - let's see if it works.

I've got one of those pieces of shit on my Tricross and ended up putting a fair amout of weight on to stop it slipping. Met a guy riding on on an audax who had managed to make a thin rubber shim to grip and reckoned that it had worked OK.

thanks all, tightening it worked a treat! (doyyyyy) Looks like i need to buy myself a cycling allen key with better leverage for future use...

. . . . if stuff ever slips (even if torqued up the the makers spec) I use assembly paste.

Magical wonder bike building stuff.

thanks I might have to buy some as my seat post is a bit slippy too (but I might just get a shim for that)

That reminds me.. I ordered some of this shit ages ago and still don't have it.. along with an allen key set.. fucking fuckers!>

Or maybe I do have this but it's buried under a pile of junk in the cupboard of infinite bike shit..

That reminds me.. I ordered some of this shit ages ago and still don't have it.. along with an allen key set.. fucking fuckers!>

Or maybe I do have this but it's buried under a pile of junk in the cupboard of infinite bike shit..

Go to it . . . use it . . . it is your friend.

It is designed for Carbon parts (which has a low friction coefficient) - but works just as well on metals/plastics.

Not only does it stop stuff from slipping, but when you come to taking stuff off/apart it magically acts like grease and helps stuff come apart easily.

I know that sounds contradictory - but it works like this, it is made from millions of tiny rubbery spheres - when under pressure, when the part is clamped down, these spheres squash and deform to form a dense paste with a very high friction coefficient - but when you loosen up the part for removal the spheres return to their original spherical shape and help to 'roll' the surfaces away from each other.

You only need to use a very thin layer, so a tub like the one above should last many years.

This stuff sounds like witch-craft.

Go to it . . . use it . . . it is your friend.

It is designed for Carbon parts (which has a low friction coefficient) - but works just as well on metals/plastics.

Not only does it stop stuff from slipping, but when you come to taking stuff off/apart it magically acts like grease and helps stuff come apart easily.

I know that sounds contradictory - but it works like this, it is made from millions of tiny rubbery spheres - when under pressure, when the part is clamped down, these spheres squash and deform to form a dense paste with a very high friction coefficient - but when you loosen up the part for removal the spheres return to their original spherical shape and help to 'roll' the surfaces away from each other.

You only need to use a very thin layer, so a tub like the one above should last many years.

I know all about it.. you gave me the same sales pitch ages ago (I may have wiped your memory of the meeting) which is why I finally bought some. I think I may have the tub but my memory is failing me..

This stuff sounds like witch-craft.

sounds like custard

I know all about it.. you gave me the same sales pitch ages ago (I may have wiped your memory of the meeting) which is why I finally bought some. I think I may have the tub but my memory is failing me..

Ask yourself, the last few mornings when you have had jam on toast (don't lie now) - did the jam taste a little bit odd ?

And did you find that your teeth had an unusually good purchase on the toast ?

If so, I may know what happened to your assembly paste.

Incidentally, the sugar in the strawberry jam may help the seatpost to stick to the saddle rails.

It's just gritty Vaseline.

It's just gritty Vaseline.

Yes Dave; but you werent complaining about it last night!

Ask yourself, the last few mornings when you have had jam on toast (don't lie now) - did the jam taste a little bit odd ?
And did you find that your teeth had an unusually good purchase on the toast ?
If so, I may know what happened to your assembly paste.

Crumpets.

Everything is clear now.

I'm off to A&E.