Call us on 01278 441500

M:Part Ahead Stem Shim Adapts 1 1/8 Inch / 28.6 mm to 1 Inch / 25.4 mm

Customer Reviews (11)
4.8 / 5| Write your review
£2.99
was
£2.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Details
A split aluminium shim that fits over a 25.4mm (1 inch) steerer tube changing the outer dimension to 28.6mm (1 1/8 inch).
Allows the use of a stem designed to fit 1 1/8 inch steerer tubes where greater choice is available.
Black anodised finish with laser etched detail.
Product Reviews (11)
Questions & Answers (3) Q & A
Specification
Downloads
Download File  
Product Reviews (11)
Overall Product Rating 4.8 / 5
Did the job
By Anonymous
27 Jul 2019
5 / 5
I recommend this product
ConsNone
ProsExcellent, did the job
Excellent, did the job
Very versatile product
By Anonymous
10 Aug 2017
5 / 5
I recommend this product
ConsNone
ProsWell made, value for money, just works
Great and cost effective solution to convert the smaller stem to accept a wider range of stem accessories. Fitted perfectly and delighted with the service from SJS. Thanks
Perfect - did job as expected
By Anonymous
08 Aug 2017
5 / 5
I recommend this product
well engineeired litlle shim that did the job perfectly
By Anders
02 Jun 2017
5 / 5
I recommend this product
Excellent service and delivery
Ahead Stem Shim 1 To 1 1/8"
By Paul D
06 Mar 2017
5 / 5
I recommend this product
Consnone
Prosmatches modern stem & handle bars
purchased to aid replacement of old quill stem & road handle bars The ahead stem shim enabled the use of a modern 1 1/8th stem. Fantasic service & speedy delivery from SJS.
By Anonymous
10 Feb 2017
5 / 5
I recommend this product
The ahead shim does the job it is intended to do very nicely.
Just Perfect!
By Robin Parkes
01 Nov 2012
5 / 5
ConsNone
ProsPerfectly machined and finished
I wanted a slightly less upright riding position on my hybrid so set about gathering up the parts. The quill stem adaptor had to be black to keep the look for the bars and stem I got were black. The adaptor, being 25.40mm diameter, needed a shim to allow the new stem to fit. The 25.40 to 28.60mm shim was the perfect solution. My bike looks and rides much better now.
Simple And Effective...:)
By Morten
27 Sep 2012
4 / 5
I recommend this product
Consnona
Prosease of use, price, looks
I am building a colnago C40 with a 1" fork steer, and used to match it to a modern 1 1/8" stem, works and looks brilliant :D
Does The Job.
By tdr1mka
25 Sep 2012
5 / 5
I recommend this product
ProsBeautifully finished item.
Having to replace my old 1 1/8" threaded forks after nasty altercation with a Merc I bought myself some lovely carbon forks which had a 1" steerer stem. I easily sourced the headset but needed a shim to fit my stem and this was the best option.
Just The Ticket
By Geoff Clarke
31 Oct 2011
5 / 5
I recommend this product
ConsNone
ProsGood fit
Just what I needed. I was replacing an old quill stem 1" threaded headset with a threadless adapter in order to have more choice, but this gave a 1" stem. So a shim was required to use 1 1/8" stems. This worked perfectly, fitting the stem adapter and the stem very snugly.
Really Useful!
By Anonymous
16 Oct 2011
4 / 5
I recommend this product
ConsNone
ProsPerfect fit, Very nicely machined, Problem solving
Just the thing to allow the use of a normal 1 1/8th stem with a 1 inch fork steerer. Really useful and allows a much greater choice when choosing a stem or allows the use of modern fair with an older bike. Ideal for that restoration! One thing to be aware of...you may still need to use a 1 1/8th top cap if you want to hide the shim. A 1 inch top cap allows it to peep through!
Questions & Answers (3)
Do these cause squeaks or creaks under loading?
By
27 Feb 2019
Hi there,

Unfortunately, we would have no idea as we have never tested one of these I'm afraid.

Thanks.
28/02/19
do i need a ahead headset to go with this
By
28 Nov 2018
HI there,

Yes you would still need a headset.

Thanks.
29/11/18
How Long Is This Shim?
By
17 Mar 2014
Hi,

This shim is 40mm in length.

Thanks.