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USE Seat Post Shim - 27.2 mm ID

Customer Reviews (4)
5 / 5| Write your review
£6.99
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Outer
£6.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Details
Product Reviews (4)
Questions & Answers (7) Q & A
Details
The USE shim system allows you to fit a seat post into virtually any frame size. Our shims are made to 100mm length and are longer than other shims on the market giving your seat post much better support inside the frame. All shims are designed with a "top lip" to stop the shim sliding into the frame.

Shims are available in Aluminum and Thermo Plastic, despite the latter being a lighter solution its material characteristics limit the thickness of the ID - OD measurements. Aluminum is used to achieve the thinnest shims as it is a more robust material.

Rolled Aluminum shim - the very thinnest shims are rolled from sheet metal. 25.4mm shims need to be so thin as they are etched down in acid to the correct tolerance and are too thin to anodise (show as silver).

Machined Aluminum shim - machined to very high tolerances from 6082 T6 Aluminum and then black anodised to protect from corrosion.

Machined Plastic shim - larger size shims are machined to very high tolerances from "filled" engineering thermoplastic UPVC. This keeps the weight down, as the shims get thicker.

Shim design characteristics may affect weight.
Weights are accurate to the nearest gram.
Shims allow a rider to adjust the ID of a frame for a range of different sized posts.

OD 27.8mm - Aluminium
OD 28.0mm - Aluminium
OD 28.2mm - Aluminium
OD 28.4mm - Aluminium
OD 28.6mm - Aluminium
OD 28.8mm - Aluminium
OD 29.0mm - Aluminium
OD 29.2mm - Thermo-Plastic
OD 29.4mm - Thermo-Plastic
OD 29.6mm - Thermo-Plastic
OD 29.8mm - Thermo-Plastic
OD 30.0mm - Thermo-Plastic
OD 30.2mm - Thermo-Plastic
OD 30.4mm - Thermo-Plastic
OD 30.6mm - Thermo-Plastic
OD 30.8mm - Thermo-Plastic
OD 31.0mm - Thermo-Plastic
OD 31.2mm - Thermo-Plastic
OD 31.4mm - Thermo-Plastic
OD 31.6mm - Aluminium
OD 31.8mm - Thermo-Plastic
OD 32.0mm - Thermo-Plastic
OD 32.2mm - Thermo-Plastic
OD 32.4mm - Thermo-Plastic
OD 32.6mm - Thermo-Plastic
OD 32.8mm - Thermo-Plastic
Specification
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Product Reviews (4)
Overall Product Rating 5 / 5
Perfect for the job
By
29 Jul 2018
5 / 5
I recommend this product
Did the job perfectly and arrived bang on time
Brilliant *****
By
12 May 2018
5 / 5
I recommend this product
Did the job perfectly.
Making the job
By
01 Dec 2017
5 / 5
I recommend this product
ConsNone
ProsLightweight Thermo-Plastic
I'm using version 27,2 - 29.4mm - Thermo-Plastic, real weight is 12g. Extended length for better seatpost support. Great, precise product.
By
03 Nov 2017
5 / 5
I recommend this product
ConsNone
ProsWell made aluminium, good strong top lip to stop it sliding down your seat tube.
A good well made product that allows you to fit almost any seat post to your frame, good price and super quick delivery well recommend.
Questions & Answers (7)
I have a new seatpost which is 27.2 but really it should be 28.4 so what size shim do I need ?
By
22 Jul 2018
You simply need the 28.4mm option as these are all for 27.2mm posts.

Thanks
Shim for a 1mm gap?
By
21 Jun 2018
Can I use an aluminium shim to get my 25.4mm seat post to fit snugly in a frame meant for a 26.4mm seat post? It's a 1976 Dawes Tourer and I don't really want a modern seat post. Also if it will work, which length should I get and can you send it quickly? Thanks. Tom
Yes, we would suggest using - SJS Cycles part number : 20717S264

Thanks
I need one to fit 30.9mm. do you have this size/ or can i use 30.8??
By
15 May 2018
We would recommend using SJS Cycles part number : 20718S309

Thanks
can i use this with venzo frame
By
02 May 2018
according to venzo frame specs, the seat post diameter is 31.6 and the clamp diameter is 34.9 , i want use either the promax or humpbert seat posts of 27.2
Hi there,

If if the post you choose is 27.2mm and you select the 31.6mm option, and the frame is 31.6mm, this will work.

Thanks
Hi the use seatpost adapter od 31mm Id 27.2mm can I use the existing seat Post clampthanks Mike
By
14 Aug 2017
It is a pinarello f4-13 frame
Hi,

You should be fine to use your existing seatpost clamp.

Thanks.
Why Is The 31.6 Option In Aluminium , When There Is Thinner And Fatter Sizes In Plastic
By
27 Dec 2016
Hi,

Unfortunately this is just how USE supply them. I'm sure at some point there was a valid reason for it, but unfortunately we don't know what the reason is and they have been supplied like this for a great number of years.

Thanks.
Use Seat Post Shim - 27.2 Mm Id
By
21 May 2014
i want to buy a USE Seat Post Shim 27.2 mm ID to 28 mm OD,i live in Taiwan,can you sipp it for me?how much i need pay totally?by bank transfer or credit card ?
best regards
Hi,

For a shipping quote just add all of the items you are looking at into your basket. Then proceed to the first step of the checkout. Once you have added a valid delivery address either by logging into your account or creating an account if you're a new customer the website will generate the shipping cost for you. We can accept credit cards through the website.

Thanks.