Community > Non-Thorn Related
Brooks saddle nose adjusting nut
Andyb1:
Does anyone know the thread used on the Brooks nose adjusting nut - the one that adjusts the saddle tension?
Mine keeps slackening off and I want to add a second one as a locknut.
I guess it is a whitworth thread?
Thanks
AndyB1
UKTony:
If your saddle uses this tension pin then according to SJSC who answered a similar question about this item, the thread is M8 (see the Questions and Answers). Otherwise I’m afraid I don’t know.
https://www.sjscycles.co.uk/saddles/brooks-tension-pin-assembly-64-mm-with-nut-zinc-bmp173/
JohnR:
Can you loosen the nut and apply some blue (low strength) threadlocker then retighten?
Andyb1:
Thanks for the replies -
- the thread on mine does not look like metric, I read elsewhere it was 5/16 bsf so have ordered a couple of nuts to try. I think later ones may be M8.
- I have tried locktite but the nut still loosens. Maybe grease under it, or the movement of the saddle just rocks it loose?
j-ms:
My tensioning nut on wife's previous B67 started to loosen after a few years. We were on a long tour when this became a problem and so after struggling for a few days I simply superglued it after setting the correct tension. It never needed to be retensioned after that because the rails both snapped about a year later (but that is a story on its own).
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