SJSC Adjustable Tandem Stoker Stem - Black

Customer Reviews (8)
4.5 / 5| Write your review
£29.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
-40 degree angle
-52mm seat clamp height
-28.6mm seat clamp dia
-25.4mm front loading handlebar clamp
requires a shim to fit to seatposts of different diameters (not supplied).
Product Reviews (8)
Questions & Answers (6) Q & A
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Product Reviews (8)
Overall Product Rating 4.5 / 5
Does the job perfectly
By Aleman
17 May 2020
5 / 5
I recommend this product
ConsNone really
ProsWell made and flexible in mounting
Great piece of kit, enabling me to position the stoker bats at the perfect height for the stoker, to give them a more comfortable upright position, and was pressure on sensitive bits :o

Didn't read the part that said requires a shim, DOH! Still, easily obtained, and fitted. Stem is firm. The other problem is that it is taller that the original, which coupled with a saddle swap to a Brooks B17 has now affected my saddle position. I'm going to buy another shim, and mount it on the cross tube, should work perfectly.
By John Silvertown
23 Aug 2019
5 / 5
I recommend this product
Agree with other reviews. Mine has enabled me to attach a Travor trailer to my electric bike where the rear rack is too high. Good value for a precision piece of kit.
By Jeremy James
15 Aug 2019
4 / 5
I recommend this product
No frills, does exactly what it is supposed to do.
Can Increase The Handlebar Height Even More!
By Steven Wilkes
23 Aug 2016
5 / 5
I recommend this product
Works fine for what it's supposed to do but you can increase the handlebar height even more by discarding the handlebar part and fitting a length of aluminium tube in it. Can then fit a standard stem to it to raise the handlebar. Fit a standard steerer cap into the end of the tube to finish it off. You would have to pay about £80 for an equivalent.
Great Product
By Scott Tuttle
17 Jul 2016
5 / 5
I recommend this product
Great stem, does what it is supposed to. Living in the USA, I still use SJS Cycles on a regular basis. Great to deal with.
Good Value ,Simple Solution
By Anonymous
23 Aug 2012
4 / 5
I recommend this product
Works very well and enabled me to set the handle bars in just the right position.
Nice Solid
By Simon Kidd
08 Aug 2012
4 / 5
I recommend this product
Well made and solid construction.
Firm and reliable fixing for stoker bars
Works Well
By Anonymous
18 Jul 2012
4 / 5
I recommend this product
I have two regular back seat drivers, this allows easy adjusment for each.
Questions & Answers (6)
Do you have a different size stem?
13 Jun 2023
I want to buy an adjustable stoker stem but I need the seat clamp diameter to be 29.8mm the steering clamp is 25.4mm.
Can you sell me the right size please?
greetings Bert
Hello & thank you for your enquiry.
The adjustable stoker stem we supply is of the following details & measurements -
40 degree angle
52mm seat clamp height
28.6mm seat clamp diameter
25.4mm front loading handlebar clamp
Unfortunately we do not offer with seat clamp diameter specific of 29.8mm.
Kind regards, PC 14/6/23.
Is this compatible with 17276W47?
12 Apr 2022
Thank you for your enquiry, no sorry not suitable as this is a 25.4mm bar clamp.

WD 13/04/22
What is the max length of stem and can it be rotated by 45 degrees
01 Aug 2019
HI, the max legth is 210mm. Yes it can be rotated. Thanks
Re. Steven Wilkes comment
17 May 2018
What type of ‘standard stem’ would Steven have been referring to?
Would like to follow his idea.
You will simply need to match the stem clamp diameter to the extra tube you are fitting, and then select a suitable handlebar clamp and length.

What shim will i need to fit this stem to a 27.2 seat post
22 Nov 2017

You would need a shim with an outer diameter of 28.6. This can be found under sjs part #22922D286.

Stem Diameter (!)
22 Dec 2015
I'm afraid you have misunderstood my question. What is the diameter of the adjustable stem part of the unit, the one which you slide in and to of the seat post fixing.

Hi, apologies for that, the diameter measurement is 28mm for the sliding stem piece. Regards