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Thorn Drop Handlebars for Gilles Berthoud Rohloff Shifter - 25.4mm Clamp - Black

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5 / 5| Write your review
£29.99
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We wanted some drop bars which would maximise the functionality of the shifter Gilles Berthoud has made for the Rohloff hub.
It is no use having fantastic bars if your choice of stem is limited. We have an awesome quantity of different lengths and angles of stem available but these are in 25.4mm diameter. We decided to have the bars made with a 25.4mm diameter centre to allow us to draw on our stock of stems.
We wanted to fit the shifter as close as possible to the stem, to maximise the amount of useable straight bar on the “tops” of the drops. We did this by making the parallel section of the centre swell as small as possible (40mm). We also made the taper from 25.4mm to 23.8mm (the standard diameter of drop bars) as short as we could, commensurate with avoiding the production of a stress riser in this critical area.
We could only afford to have one width of bar made so we decided to have a medium drop and a medium forward reach with a relatively wide 44cm centre to centre width. This width gives valuable extra straight section of the bars and is a great choice for touring.
Although we don’t expect to use the “hooks” very often, we knew that we must take advantage of the anatomical shapes which are available.
Finally what would be the point of making a specific bar for use with a Rohloff hub if we didn’t use the finest possible material to make it from?
We were advised that, for such a shape, we should choose double butted Al 6061…so we did!
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Product Reviews (1)
Overall Product Rating 5 / 5
As Described, Berthoud Shifter Sits Close To Stem
By
17 Jan 2013
5 / 5
This works in its stated design, the Gilles Berthoud shifter sits close enough to the stem that there is a full handspace on the top bar. The prevalence of O/S or 31.8mm stems means you have restricted choice on stem choice, may or may not be an issue, the Thorn one worked fine for me.
Good price.
Questions & Answers (1)
Handlebar Stem Diameter 26
By
08 Jul 2015
Is this bar suitable? My present handlebars are 26 mm dia.
SJS Customer Service:
Hi,

Unfortunately this set of handlebars would not be compatible with your current stem, these bars have a 25.4mm clamp diameter. If you wanted to fit them you would have to change your stem to one with a 25.4mm clamp as well I'm afraid.

Thanks.