Seat Post Shims - Good, Bad? -

Discuss light weight issues concerning road bikes & parts.
User avatar
SWijland
Posts: 853
Joined: Tue Aug 08, 2006 1:41 pm
Location: The Netherlands
Contact:

by SWijland

thisisatest wrote:Thermoplastic shim is slippery, especially against use's own hard anodised shockposts. But now there is grip paste (carbon paste, fiber grip, whatever), so that should be a non-issue now.


Used the stuff. Didn't work.

5 8 5
Posts: 1353
Joined: Sat Jul 29, 2006 2:36 am
Location: UK

by 5 8 5

SWijland wrote:Used the stuff. Didn't work.

Works for me! I use carbon paste on all my seatposts (aluminium, carbon and ti). Never have any slippage. I also use it on all my bars and stems. Again no slippage.

I suspect that either your seatpost is slightly out of spec or most likely your frame.

by Weenie


User avatar
SWijland
Posts: 853
Joined: Tue Aug 08, 2006 1:41 pm
Location: The Netherlands
Contact:

by SWijland

The new aluminium No Name shim works fine, so I guess I can rule out wrong dimensions.

5 8 5
Posts: 1353
Joined: Sat Jul 29, 2006 2:36 am
Location: UK

by 5 8 5

Depends on the spec of the no-name?

Carbon paste is one of the better innovations in cycling and is essential not just for the WW but useful on any bike generaly allowing lower torque to be used to hold things firmly in place.
Manufacturers certainly see the benefit by recommending its use and supplying it with some frames and stems.

To say it doesn't work is plainly misleading. It didn't work for you due to either differing specs, tolerances or user error.

User avatar
mellowJohnny
Posts: 484
Joined: Thu Aug 16, 2012 12:56 am
Location: YYZ

by mellowJohnny

All set up and working well. Used FinishLine carbo grip inside and outside the shim.

Thanks to everyone who chimed in, much appreciated.

User avatar
HammerTime2
Posts: 5427
Joined: Thu May 04, 2006 4:43 pm
Location: Wherever there's a mountain beckoning to be climbed

by HammerTime2

Did the 27.2 to 31.6 shim weigh 25g (FWB) or 26g (manufacturer's web site)?

User avatar
mellowJohnny
Posts: 484
Joined: Thu Aug 16, 2012 12:56 am
Location: YYZ

by mellowJohnny

It actually weighed 20g. I thought about drilling it out a bit since it is not structural, but have not yet. I could probably get it down to 15g.

Very happy with the results.

Post Reply
  • Similar Topics
    Replies
    Views
    Last post