Carbon Post slipping

[steverod23]

I have an Easton carbon seat post on an aluminum Superfly.
The post slips as much as an inch each ride. I'm using the stock collar which is not quick release.

I already degreased the seat tube and am pretty sure I am tightening the seat collar too much as it is now.

Any advise ? Is Tacx Carbon Assembly Paste the next step ?

 

[The Heckler]

I'm not familiar with that exact carbon assy compound but there are a few out there that basically have a sand like media inside grease. They seem to do the trick.

Also measure the post diameter! I't could be a case of "This is the wrong seat post standard." There are a couple that are pretty close.

 

[MannyL358]

Fiber Grip from Finish Line works awesome.

 

[goodvibe]

I use Fiber Grip on all of the clamping points of my carbon components. I use it on my carbon handlebars, carbon seat posts, carbon steerer tubes and everything in between. I have the Finish Line Fiber Grip as mentioned above.

http://www.finishlineusa.com/products/specialty-products/fiber-grip-

 

[Juggernaut]

I've used the FSA, Easton and Finish Line products and the Fiber Grip works the best for me. No matter what, please fight the urge to over snug it. Carbon seatposts go from good to busted in a heartbeat.

 

[goodvibe]

Always use a torque wrench on carbon components.

 

[Optiwizard]

I use park tools version and no troubles.

 

[jdog]

I have an Easton carbon seat post on an aluminum Superfly.
The post slips as much as an inch each ride. I'm using the stock collar which is not quick release.

I already degreased the seat tube and am pretty sure I am tightening the seat collar too much as it is now.

Any advise ? Is Tacx Carbon Assembly Paste the next step ?

Use a caliper to measure the post. I have seen a few undersized Easton posts. If it is off, they will give you new one.

Measure the frame as well.

Clean both very well.

Use a carbon paste

Grease the bolts on the seatpost clamp.

Tighten a reasonable amount. Torque wrenches are a nice trick, but consider that they are notoriously out of spec. Also the numbers you will measure will vary wildly depending on dry or greased threads on the bolts.

 

[evo456]

i use gym chalk. works wonders

 

[gingertooth]

def measure the seatpost. it could be off....i've never had any slippage issues with carbon...

 

[Karate Monkey]

You should use carbon grit paste of some kind any time you install carbon seartposts.