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Thorn Accessory Bar MK2 T Shaped 105 mm Extension - 25.4 mm

Customer Reviews (3)
4.7 / 5| Write your review
£19.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Mounts to 1 1/8inch steerer tube for lights, computers etc. A really useful T shaped bar for lights and computers when handlebar space is at a premium.
Perfect for mounting light/computer brackets when using a drop bar set up, it goes in place of a headset spacer.


Steerer tube space needed - 27mm
Extension 105mm
Bar width 150mm
Bar diameter 25.4mm
Degree - 12

Single clamp allen key bolt at rear, hard black finish.

Weight - 130 grams.
Product Reviews (3)
Questions & Answers (5) Q & A
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Product Reviews (3)
Overall Product Rating 4.7 / 5
By Sigitas
21 Sep 2019
5 / 5
I recommend this product
It fits to my bike very well. I am fully satisfied.
Very good
By Gareth
19 Oct 2018
4 / 5
I recommend this product
ConsInterferes with cable for front brakes needs quite a lot of space on the steererer tube
Useful for mounting handle bar bag, particularly if you need space on the handle bars
Perfect For My Needs
By Brian Baker
15 Dec 2016
5 / 5
I recommend this product
ProsPerfect size and shape, high quality, lightweight.
This is exactly what I needed to properly mount my Ortlieb Ultimate6 on the front of my ElliptiGO.
Questions & Answers (5)
extension bar diameter
19 Jul 2018
Would the extension bar be 22.2mm diameter. I have asked a similar question about the silver one but if this one is the same apart for the front bar diameter I would prefer the black colour.
And presumaby 0 degrees translates to it being at right angles to the steerer tube.
I would cut the top bar off and fit it sideways to take a Rohloff changer if possible.
Yes the extension bar is 22.2mm.
The 0 degrees means it will be at 90 degrees to the steerer tube,.

Will this fit a trek hybrid?
29 Jun 2018
As long as you have 27mm of spacers you can remove from below the stem and its 1.1/8th" steerer tube, yes.

What'S The Height Of The Steerer Tube Section?
21 Jun 2016
Hi, I have limited space available on the steerer tube (2 x 10 mm spacer) and I'm wondering whether the extension bar clamp will fit

The clamp is 27mm deep so will be too large to replace just your two 10mm spacers I'm afraid.

Thorn Accessory Bar Mk2 T Shaped 105 Mm Extension - 25.4 Mm - 0 Deg
13 May 2016
I am looking to add an extra bar to my stem to attach my Ortlieb Ultimate Handlebar bag so that I can free up space on my handlebar for lights and phone mount. I would like the bar to sit lower so that my light can shine over the handlebar bag. Would the Thorn Accessory Bar MKS T work for this application?

This MK2 T bar was designed almost entirely for that purpose so should work for exactly what you're trying to achieve.

Advantage Of 25.4 Diameter Compared To 22.2 Mm
08 May 2015
I'm trying to decide which to order. This will be used to mount an Ortlieb handlebar bag using a Rixen Kaul Klickfix mount.

For mounting a handlebar bag bracket we would recommend going with the 25.4mm size as it will allow for a better fitting. The 22.2mm size was release mainly to allow the fitting of a gear shifter to it.