Gilles Berthoud Brake Spindle Screw for Mudguards

Customer Reviews (2)
5 / 5| Write your review
Size (mm)
£2.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
This nut is to fit in place of the original nut and allow assembling and disassembling very easily the fender without any adjustment of the brake.

- If you have a front rack fixed between the brake and the fork crown, you have to choose the 13mm model
- 22mm & 30mm for carbon forks
Product Reviews (2)
Questions & Answers (4) Q & A
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Product Reviews (2)
Overall Product Rating 5 / 5
By C
08 Dec 2022
5 / 5
I recommend this product
Cons9 and 13mm have slightly different hexagon sections
ProsWell made, useful
I don't know where else you'd find something like this, other than SJS. These are nicely made, useful components for your – my – old steel audax frame. It saves the faff of swapping out the bolt for the front brake with a hex key fitting, and it's a tidy way to attach the mudguards. It depends on your set up and how fussy you are: one comment would be that the 9 and 13mm versions have different length outer hexagon sections. The 9mm is slightly longer. If you want them look the same front and back, get two 13mm and file one down for the rear as required.
Great Problem Solver
By M Bacon
14 Sep 2018
5 / 5
I recommend this product
ConsHard to find - SJS provides a real service by carrying such a broad range
ProsNice machining, inexpensive
Well machined and tightening with an external hex is really easier than with an internal. Long threading and internal threads to the rear end allowed me to mount split mudguards (fenders) and fatter tires on an old 80s steel Trek.
Questions & Answers (4)
Gilles Berthoud Brake Spindle Screw
15 Mar 2024
Hi - what is the diameter of the 3 cylindrical sections? And why, assuming they are, are they different?
The sizing of each variation refers to the length of smallest diameter shoulder, round areas are 7.8mm and 9.8mm. SK 19/03/24
what is the thread pitch each end?
16 Feb 2019
What is the thread pitch each end? Is it M5 and M6?


Thank you for your enquiry, this item has an M6 thread for the brake bolt end & an M5 thread for the mudguard connector end. I hope this helps.

Regards. 20/02/19
How long is the wider larger section of these nuts?
09 Nov 2018
The bit that sticks out the back of the fork once fitted. They look quite long compared to the Problem Solvers version of the same thing.
This is dependant on the length of bolt, for example the 22mm is 17mm protruding, 22mm inside the fork.

Thanks - 12/11/18
Does the size measure the length excluding the larger diameter recessed section?
07 Jan 2018
Does the size measure the length excluding the larger diameter recessed section?
Hi there,

The size relates to the shaft with the smallest diameter.