Brake caliper bolts

IThey do a pinch set for the GS in stainless for £13.66 (I think thats per caliper) and the pinch bolts are £24.66 for 8. The disc mounting bolts are £44.22 for 10. These are not cheap and I'm sure there are cheaper items out there, but you get what you pay for and I for one wouldn't take chances with my safety.

I do a 1200 stainless kit that contains all those bolts, and many more including engine cover bolts, all for £50 :D

But my kit doesn't have the disc bolts for a post 2008 bike, which use different discs and the bolts come with the discs.
 
I'll repeat again what I said before:

There is no way established companies who sell 1000's of these kits would use "catering grade" or whatever SS for brake bolts. The companies who make these bolts are engineering companies. They know what the spec needs to be.

If anyone had a serious injury of near miss due to a sheared SS bolt the press would be all over it.
There is no problem, there will not be a problem.
TBH these are exactly the things the Bureaucrats in Brussels are on the case about. In a few years you will not be able to deviate in any way from the manufactures specification.
 
I'll repeat again what I said before:

There is no way established companies who sell 1000's of these kits would use "catering grade" or whatever SS for brake bolts. The companies who make these bolts are engineering companies. They know what the spec needs to be.

If anyone had a serious injury of near miss due to a sheared SS bolt the press would be all over it.
There is no problem, there will not be a problem.
TBH these are exactly the things the Bureaucrats in Brussels are on the case about. In a few years you will not be able to deviate in any way from the manufactures specification.

Established companies who can provide stainless grades fit for purpose are not the problem. There are literally tonnes of 'stainless' bolts available in the market place which are not fit for automotive use.The materials have no physical test results or traceability and are only supplied on a chemistry basis.

The bureaucrats in Brussels have nothing to do with it. Fasteners are determined by qualified engineers according to application. Every single safety critical fastener on your bike/car is spec'd up to international engineering standards. BMW require batch testing of every critical fastener they use and keep these records. B&Q don't
 
Most A2/A4 sold is used in industries such as catering. It is not suitable for any brake or suspension application. A2/A4 is generally supplied as chemistry only, i.e it only has to have the correct ratio of nickel/chrome. It is not tested to any close specification and can depending on how it is produced be positively dangerous in stress applications and be only be used for cosmetic and low corrosion environments. Unless the bolts come with full chemistry and physical testing certificates, leave well alone. Engineering fastener technology is a science and a hell of a lot of work goes into the specification of fasteners in industry. Make your own choice, proven technology with a bit of rust or nice shiny chewing gum

Previous experience with a locked up rear wheel and a rapidly approaching lamp post would lead me to believe that this gentleman is correct.

Then there is the five years I spent studying metallurgy,post empirical research,that would lead me to believe that this gentleman is absolutely correct.

There will always be the reasoning that 'feck it, it will be ok because it usually is and they wouldn't sell them if', but I would class that as belief rather than reasoning.
 
Previous experience with a locked up rear wheel and a rapidly approaching lamp post would lead me to believe that this gentleman is correct.

Then there is the five years I spent studying metallurgy,post empirical research,that would lead me to believe that this gentleman is absolutely correct.

There will always be the reasoning that 'feck it, it will be ok because it usually is and they wouldn't sell them if', but I would class that as belief rather than reasoning.

+1:thumb2

Always surprises me that people go to great lengths to get the correct oil, brake fluid, tyres, disc pads etc then fit any old crap to one of the most important parts on the bike the brake caliper. Can you imagine the sheer stress on a caliper bolt everytime you anchor up from 70! and that sheer stress also has a tensile component.

Most stainless replacements are advertised as "fasteners" and that's just what the are. Agree that some replacements may be "fit for purpose" but unless you know exactly what you are looking at you won't know if it's safe for your application.

In my line of work material specification and verification is paramount. You can never ever take risks when failure could result in death or injury.

This is one area where, if you are not an expert you should either live with rust or replace with OEM only.
 


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