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  • ULTIMATE USE SX 27.2mm Seat Post Shim
5360111525
ULTIMATE USE SX 27.2mm Seat Post Shim
ULTIMATE USE SX 27.2mm Seat Post Shim
  • SX 27.2mm Seat Post Shim
240

ULTIMATE USE SX 27.2mm Seat Post Shim

£6.99
(137) Read all reviews
Black 31.6
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ULTIMATE USE
6.99 GBP
The USE shim system allows you to fit a seat post into virtually any frame size. Their 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.
Rated 4.5/5 based on 137 Customer reviews
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  • Description
  • Delivery & Returns
  • Customer Reviews
  • Q & A

The USE shim system allows you to fit a seat post into virtually any frame size. Their 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.

Top Features of the ULTIMATE USE SX 27.2mm Seat Post Shim

Most of the sizes are made from a resin material for performance reasons (Thermoplastic (UPVC)). Some (smaller sizes), will be aluminum
All these shims have internal diameter 27.2mm

Product Data

Road: Yes
MTB: Yes

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.

About the ULTIMATE USE brand

ULTIMATE USE - UK Designed, Engineered and tested for performance in cycling.

Delivery Information

The delivery options available for shipping this product along with the contents of your basket to United Kingdom are:

  • Standard Delivery: Estimated Delivery Thursday 21/01/2021 – £2.99
    Spend £13.01 more to qualify for free delivery
  • Collect+: Delivery to one of 5500+ stores for collection at a time convenient to you from Tuesday 19/01/2021 - £2.99
  • Priority 1st Class Delivery: Estimated delivery Tuesday 19/01/2021 - £3.99

International Delivery

Wiggle ships to over 100 countries. To see what delivery options are available for other destinations you can update your delivery destination via the International Options feature at the top right of the website.

Goods are shipped from the UK. Does not include delivery charges, local taxes or import duties, if applicable.
More information on International delivery options

Returns Information

We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.

Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.

Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.
More information on Wiggle's return policy

ULTIMATE USE SX 27.2mm Seat Post Shim is rated 4.5 out of 5 by 88.
Rated 5 out of 5 by TechieBloke from If you need one - this is the one! Not exactly the most exciting item of kit on my bike, but I needed one to fit the seat post I already had to my new bike. The machining and tolerances of this USE shim are exceptional - worth paying a little bit extra - it fits like the proverbial glove and is virtually invisible once installed. Seatpost is rock solid.
Date published: 2018-06-14
Rated 5 out of 5 by HM1100S from does what it says Wanted this so that I could use a USE carbon post that I had lying around on my second bike, It does exactly what is should, fits well into the frame and I have had no problems with the post moving.
Date published: 2018-05-31
Rated 5 out of 5 by ArakawaExpress from As advertised This seat post shim does as advertised. It reduced an unusual-sized downtube to the standard size used by most seat post manufacturers. No regrets.
Date published: 2017-10-15
Rated 5 out of 5 by MilesBehind from An invaluable invention ! Can't think of anything else to say !
Date published: 2017-08-24
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What is the length of the shim?

Asked by: Davichin
These shims should feature a length of approximately 100 mm.
Answered by: WiggleJoe
Date published: 2014-06-12

What is the difference between USE SX and XCR seatpost shims?

Asked by: popery
I can confirm that the difference is the interal diameter as the USE XCR Seat Post Shim has a 25mm internal diameter. I hope this helps.
Answered by: wigglegrant
Date published: 2014-06-12

use seatpost shim 27.2-30.0 is this size made of alloy or thermoplastic . thanks.

Asked by: garby
Hi, 29.2 and bigger is thermoplastic... so the 30.0 is thermoplastic. Cheers Neil
Answered by: Yogi6777
Date published: 2013-10-23

Seat post shim?

I have a seat post with a dia of 30.5mm. I want to replace seat post with a suspention type - with a 27.2mm dia. What shim dimensions do i purchase to suit new one?
Asked by: Codd
We do not stock a 30.5mm shim so you will need to use either a 30.4 or 30.6mm shim. You should be fine using either of these sizes.
Answered by: WiggleDean
Date published: 2013-10-23

Shim Size

I have a seat post measuring 30.89 OD that need to fit into a mount with an ID of 33.77. Do you have a shim to suit this sizing? Thanks!
Asked by: RobMcD
Unfortunately this is not an option we have available.
Answered by: WiggleKingL
Date published: 2016-03-25

size help please

i wish to fit a 25.4 seat post into a frame that has a 27.2 post, which shim size do i need please.
Asked by: Fergnago
This shim will not be suitable. You require the following in the 'in 25.4, out 27.2'.
Answered by: WiggleKris
Date published: 2015-10-28

I need a shim for a 27.2 seatpost I have bought to make it fit a 31.6 seat tube, which size shim will I need?

Asked by: Djice
Hi, According to the description, "all these shims have internal diameter 27.2mm", which fits your seat post, so you just need the one that fits your seat tube.... so the 31.6 one. Cheers Neil
Answered by: Yogi6777
Date published: 2013-10-23

??.? To 30.8 shim

I have no have no idea wnat seatpost to get. My bikes diameter is 30.8. So once I have put in a 30.8 shim what will the diameter by?
Asked by: Nathannnnnnnnnnnn
For further assistance please contact us: http://www.wiggle.co.uk/ContactUsForm
Answered by: WiggleKris
Date published: 2015-10-12

Would shims work for attaching a trailgator?

We have a trailgator and the seat post is a bit too narrow for it. Would it be possible to use a shim to sort this out? Thanks
Asked by: paulre
You should contact the manufacturer of your trailgator to make sure that using shims would not damage the trailgator or your seapost when using the clamp.
Answered by: WiggleDean
Date published: 2013-10-23

I have a 30.8 frame can I shim to 27.2 with this set?

Asked by: VonkeyVong
Sure, just select the 30.8 option. This will allow you to use a 27.2mm seatpost.
Answered by: WiggleKris
Date published: 2016-06-13
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VAT No: GB 884 2571 94 | Company No: 02667809

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