Thorn Accessory Bar MK1 T Shaped 105 mm Extension - 22.2 mm - Satin Silver

£16.99 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 a Rohloff / Sram shifter 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 22.2mm
Degree 12

Single clamp allen key bolt at rear.
Weight - 110 grams.
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Questions & Answers (4)
jtec adapter front derailieur
09 May 2019
I hope to get some advice on jtec adapters. I'm building a traveller/commuter bike and I want to run a Shimano xt touring/mtb drivetrain with road levers. I found the correct jtec adapter for the rear mech, but I am wondering if a xt crank/front mech would work with a road lever. I read and heard that this might be problematic. Is there a jtec adapter to solve this issue?

best regards
Hi there,

You will require Shiftmate 7,

Thanks - 10/05/19
Extension bar diameter
19 Jul 2018
Please could you confirm if the extension bar is the same diameter as the front bar, that is 22.2mm
Also does 0 degrees mean that it will be at 90 degrees to the steerer tube.
My idea is to cut off the front bar , use it sideways as per I think the American Doohicky as I think its called.
Yes the extension bar is 22.2mm.
The 0 degrees means it will be at 90 degrees to the steerer tube,.

Do you have a shim to enable me to use this on a 1" ahead steerer?
09 Oct 2017

We do indeed have a shim suitable for this purpose, they are SJSC part number 3618.

Thorn Accessory Bar
27 Jun 2017
I need a thorn accessory bar that fits on a c.a. 34 mm pipe.
Do you have this (or filling).
Do you have a dealer in The Netherlands please ?

Unfortunately all of the Thorn Accessory bars have been designed to fit to tubing that is 28.6mm in diameter so unfortunately there isn't one that would fit over 34mm. We don't have a dealer in the Netherlands but we can ship internationally.