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I have a post mount fork and adding a 3 yr old post mount TRP Spyre hy/rd calliper.
Do I add a dab to the bolt threads and let dry?
Or do I add a dab and then torque it and let set over night?
Can’t find any instructions for TRP.
Thanks!
It sets in the absence of oxygen, once assembled. So your second option.
Thanks greyspoke!
On a slightly different tack- in 25 years of using disk brakes, I’ve not once used locktite on a callipers bolt.
Still not dead.
Yeah - I never bother (unless it's the original supplied bolts and it's already applied).
@lardman do you use grease? I find that with nothing they can sieze a bit.
don't use grease, unless it feel very dry/runbly when i'm inserting (fnaarr).
But, as @scotroutes says, sometimes the bolts i'm using have residual threadlock on them.
I've never either had a bolt come loose, or stripped out a stud on a fork. I'm far from a delicate mechanic type either.
If you need something to worry about, i'd look elsewhere.
Hi,
I just don’t like the look of my TRP Spyres hy/rd with large holes and movement.
I’m only adding a small dab and some spare bolts have them on already.
@greyspoke is quite right of course. Yet, when I've bought Hope discs they come with bolts that already have dry threadlock on them. So what's that about? Surely bolts and a sachet of threadlock would be better.
Oh, and when removing and re-fitting rotors I've never bothered to re-apply threadlock. For the record, I'm also not dead yet 🙂
when I’ve bought Hope discs they come with bolts that already have dry threadlock on them. So what’s that about? Surely bolts and a sachet of threadlock would be better.
IIRC it acts like a grease so is shear thinning until it cures so when torqueing up you should use the lower 'wet' value. There's upteen different versions of threadlock, some are liquids, some are like wax, some are like putty. So the stuff you get pre applied on bolts isn't the same as the stuff you get in a bottle, it just has the same resistance to coming undone.
For the record, I’m also not dead yet 🙂
Let's wait for the people who died to post about their threadlocker regrets 😉
I top up the thread lock on my calipers or rotors if I have it to hand. If there's some left on the threads and I don't have any to hand then I don't worry too much, just wait til next time. I think it goes some way to preventing the bolt sticking due to corrosion, a bit like anti seize.
So the stuff you get pre applied on bolts isn’t the same as the stuff you get in a bottle
Ah, right, that makes sense. I'll shut up now and make way for the dead people to have their say.
It's a selection bias. Where do you need to put armour on a plane? Where you find no bullet holes on the planes that survived.
https://www.johndcook.com/blog/2008/01/21/selection-bias-and-bombers/
^^ Great post that Alex.
I've never thought of things that way.👍