Bargains?

[Fazerider]

[quote author=Fazerider link=topic=23301.msg269425#msg269425 date=1507551425]
[quote author=darrsi link=topic=23301.msg269331#msg269331 date=1507382080]
Firstly, do they even need threadlock, 'cos i seriously cannot imagine them ever coming loose if torqued properly?
And secondly, as the disc is being changed, would it not be a great idea to take the bike for a spin and use a lot of rear brake, because that will heat all the disc bolts up anyway!

Agreed, threadlock is not necessary in my view. I've used Copaslip when I change the discs and they haven't unscrewed themselves.


As for the rear disc heating the screws and wheel hub, it just doesn't.
Well, no more than a few degrees anyway.
Steel is a lousy conductor so most of the heat is lost to the air directly from the disc. What little does get there is then distributed rapidly through the whole wheel (aluminium is an excellent conductor), so it never gets the bolts any more than tepid.
[/quote]

I can totally understand manufacturers using thread lock, they're simply covering their arse in the very unlikely event that a bolt might unscrew, plus they don't have to remove the buggers either so probably smear plenty of the strong stuff on it too.
It's quite possible the disc I tried removing was the OEM one so maybe that's why it was so difficult?
[/quote]
I think some types of threadlock continue to get stronger with age. Front discs are less of a problem because they wear out quicker, but the rear can easily be 15 years old before it needs changing. That also gives plenty of time for moisture to creep in and cause corrosion.