Leader 725 seat post slipping problem

has anyone else noticed this?

ive had my 2010 725 for a couple of weeks now and the seat post will not stay up for more than a couple of miles before slipping right down...

is their anything i can do ?

ive heard this is a problem with the leaders because they have built in seat clamps but its getting unbearably bad now

fix?

E Bay.

what sell the frame? thats a bit much their must be some kinda simple fix?

Bigger seatpost/shim.

Make sure your seat binder bolt is working, if as you say it is integrated. The thread might be gone. Or as andy has suggested, you may just need a bigger seatpost.

thuperglue

the seatpost is the biggest one i could cram in and it still slips!

i dont think that its the binder bolt because its never loose, but i will give that a try!

thanks

You could try a solid clamp of some sort on the seatpost to stop it slipping in....use a bit of tape/tube to stop it damaging the frame, but that should stop it slipping down...might not look pretty depending what you use but should work and as long as there is no lateral movement happening it shouldnt be able to damage the frame (i think ;)

Carbon grip paste or shim

I had slip problems on the serotta.

Solved it with a bigger seatpost clamp and carbon grip paste.

had problems with a carbon post on my steamroller. Read somewhere that climbing chalk and grease will help, and so far it does

had problems with a carbon post on my steamroller. Read somewhere that climbing chalk and grease will help, and so far it does

The only thing grease will help with is delaminating the lacquer and getting the post permanently stuck in your frame.
Which in one way solves your problem but really isn't ideal.
Spend some money and get some proper carbon grip paste or even just pop into half decent lbs and they should give your post a smear for free. Wink wink!

^ uh oh. doesn't sound too good, point taken

I believe it's an ingredient in the grease (present in the majority of modern brands) that has a chemical reaction with the lacquer and when it delaminates the post effectively grows in size a little and becomes jammed.

It's why I'v always used ali posts.

are you using a 27.2mm seatpost?

have you tightened the bolt correctly?

have you read this?

I had the same problem.
When I went back to Leader with this problem they told me that you are supposed to break in the seat-post clamp. A bit late for that now I imagine. You can do this by tightening up the bolt as much as it will go 5 or 6 times. This seems silly to me, and it would be helpful if Leader made it clear that you are supposed to do this before installing the seat-post.
For now I am using a bit of a can as a shim, it works.
Leader sent me another frame in the end, (to shut me up) it has a dented down-tube. I have been trying to contact them for weeks now to explain that I would like just 1 frame without any dents or defects but they are now ignoring me completely.

Nhatt told me that she once denied a large-ish fellow the Thompson seatpost he wanted cos his weight meant that he'd had lots of seat-slip problems before. Basically, she forced him to buy a cheaper, less well-machined one, cos the thompson was too round and perfect for the clamp to get a grip on under this guy's weight.

Serotta have advised me that the Thomson posts are actually fractionally smaller than claimed, hence why I suffer from slippage issues.

Not best amused as the bike was specced to have the thomson.

tried a new binder bolt with a little more luck but still dropped at least 2" in 2.5 miles!!!

ill try "breaking it in" + shims but i dont think they will fit in it is a pretty good fit!

and i dont think its a weight issue!

ive heard a lot of other people are having the same problem with the leaders

DMR or Gusset or someone do a seatclamp which clamps to the frame and also to the post, it's like a bmx double bolt clamp but the top half is the right size to clamp the post not the frame, it's meant to stop post's slipping or twisting if you land on the seat from a jump, if it comes in the right size it might help? Or just use a 2nd smaller seatclamp on the post to stop it slipping down. Won't help if your seat twists though.

Sounds like a badly made piece of shit.

Could get the headtube reamed to make sure it's spot on for a larger seatpost, and buy a larger seatpost.

Sounds like a badly made piece of shit.

Could get the headtube reamed to make sure it's spot on for a larger seatpost, and buy a larger seatpost.

Defintely an option if you like sitting where your handlebars usually go, or unicycles.