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Problem Solvers Seatpost Shim Fits 30.9

Item #: SE231C00
USD$8.99
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Problem Solvers Seatpost Shim Fits 30.9

Problem Solvers Seatpost Shim Fits 31.6mm Frame

This shim solves the odd frame seatpost size problem. Put this in your 31.6mm frame, and now your 30.9mm seatpost will fit.

4.9 / 5.0
24 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
21
3
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Works great!
I was skeptical that it would fit ok given the very small diameter difference, but it works great! No seatpost slipping at all and I now have a dropper post I otherwise wouldn't have been able to use.

PROS: Lightweight
August 29, 2016
Location:
Bend, OR
Lived up to its name.
Lived up to its name, solved the problem, and you could hardly see it. I could have exchanged the post, but the cables went through the frame, and I would have to wait an other couple days till the mechanic could get to it. I just had the bike built and it was the only thing keeping me from a planned ride with friends. Stoked!
December 14, 2016
Purchased
5 months ago
Location:
San Diego, California.
Problem solvers shim - perfect solution
This enabled me to use an existing 30.9 dropper in a 31.6 aluminum frame. The fit was spot on perfect.
April 19, 2017
Purchased
1 month ago
Shim
Fit perfectly problem solved. Very easy fix. Not much to say about this. Just make sure you get the correct size.
February 27, 2017
Purchased
3 months ago
Location:
Dallas TX
Perfect fit
Bought this because I got a dropper post that was too small (user error) and this sleeve fixed the issue and allowed me to keep the dropper post. Highly recommend
April 10, 2017
Purchased
1 month ago
Location:
Yuma AZ
I m really happy with this shim. I solved my problem with a cheaper smart piece I strongly recommend.
December 12, 2016
Purchased
5 months ago
Location:
Richmond BC
Great product
Super fast delivery

PROS: Attractive Design

CONS: Heavy
November 2, 2016
Location:
Monterey
Clever Product
It works as expected. Lightweight product lets you run a smaller post in the larger opening. Exactly what I needed as I was moving a dropper post to a different bike. Major money saver!
April 17, 2017
Purchased
3 months ago
Location:
Fayetteville, AR
works!
Using with my Thompson seat post and carbon frame. Using for bikepacking on the weekends with no issues
May 25, 2017
Purchased
2 weeks ago
Location:
South Lake Tahoe
Solid solution
Does its purpose without a problem.

Don't be afraid to use it on carbon frames. Use carbon paste for the outside and grease for the inside
February 24, 2017
Location:
Atlanta, ga

Q & A

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Browse 1 question Browse 1 question and 1 answer
How tall is this shim?
shim curious on Jun 29, 2016
BEST ANSWER: The total length of this shim is about 4" or 100mm. The stack height that shows above your seat collar is only about 4mm, the other 96mm sits inside your seat tube.

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.