Cane Creek 27.2 mm Seat Post Shim

Customer Reviews (9)
4.9 / 5| Write your review
£11.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Custom machined alloy sleeve to space a 27.2mm seatpost to larger seat tube diameters. These shims are 100mm long ensure that the post is gripped properly.
Select the size of shim you need in the drop down menu. Be sure to measure you seat tube diameter first as measuring means you get the right one.
Product Reviews (9)
Questions & Answers (5) Q & A
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Product Reviews (9)
Overall Product Rating 4.9 / 5
Perfect solution
By G. H.
28 Jul 2022
5 / 5
I recommend this product
ProsGreat fit
Bought this shim to transfer Thudbuster seatpost from my touring bike ,27.2 diameter, to my e bike, 31.6 diameter, perfect. Not cheap but you get what you pay for.
By Anonymous
08 Apr 2021
5 / 5
I recommend this product
Great to have a resource like SJS cycles who stock a great range of products
Good product
By Nick
18 Mar 2021
4 / 5
I recommend this product
ConsA bit pricey for what it is
ProsDoes the job
Simple product does what is needed. . Fast delivery.
perfect fit
By Anonymous
23 Sep 2020
5 / 5
I recommend this product
Prosworks perfectly
could'nt find a post of the correct diameter for my frame so reluctantly went for a narrower post and suitable shim.
Works perfectly, need not have worried. Good and price and good service from sjs
Perfect solution for older bikes
By Andy
08 Jul 2020
5 / 5
I recommend this product
ProsWell made and a decent length.
I was having trouble locating a dropper post to fit my 2004 Santa Cruz bullit. The 28.6mm to 27.2mm shim allowed me to fit the 27.2mm Branx X Ascend II. The shim is precisioned machined so the fit is perfect, nice black anodising on it too. The length, which I think is about 4 inches, gives a decent amount of support so the post isn't going anywhere. I'm extremely happy with it.
First Class
By Anonymous
03 Jun 2017
5 / 5
I recommend this product
A good quality product with a perfect fit to both the frame and seat post
Cane Creek Seatpost Shim
By Frank Drennan
23 Aug 2016
5 / 5
I recommend this product
ProsGood value
Item fits well. Nicely made and finished.
Shim Shiminy Shim Shiminy Shim Shim Sheroo
By Dan Hopgood
17 Dec 2013
5 / 5
I recommend this product
ConsNot the cheapest
ProsGood Quality
Quality piece of kit, does the job, looks and feels good, not that you see much of it!
Post For Thought
By Jeff
13 Nov 2012
5 / 5
I recommend this product
ProsWell made, good value
My Dutch bike off ebay had a spongy cheap suspension set post. Buying this allowed me to buy a new solid post in the style I wanted and still know it would fit on my odd sized seat tube. Very well made and a lot cheaper than some.
Questions & Answers (5)
What is the length of these shims?
02 Sep 2022
What is the length of these shims?
Hi, they are 100mm long. Thanks
Which Cane Creek Shim should I order?
18 Mar 2022
I have a Cane Creek "G4 ThudBuster LT" 27.2mm Suspension Seatpost and a THORN Nomad Mk3 frame. Which of the Cane Creek shim I need for the Nomad Mk3?

For any information or advice on any of Thorn bikes, frames and forks or parts, please contact our dedicated Thorn bikes sales team either on 01278 441505 or [email protected] and they'll be able to provide you with all of the information you need.
What shim do i need to put a 26mm seat post into a 27.2mm frame
23 Sep 2020
For this you would require a shim which takes up 12mm of play. Unfortunately we do not stock this specific fitting to suit.


am i right in thinking this will allow my to put my new 27.2 seat post in my 28.6 bike seat shaft.
19 May 2020
Hi, yes it will. Thanks
Does this crane creek shim reduce my seat post from 31.2mm to the required 27.2mmt
10 May 2020
Hi, no. We do not have the 31.2 in this shim. Try Humpert Seat Post Shim - 27.2mm ID our part 32254. We have 31.2. Thanks