Acewell - What Size Magnetic Bolt?

[pete]

I've done some searching and can't seem to find what others have used size wise for the magnetic bolts for Acewell gauges.

I got budget clearance from the department of finance today and started looking, and I took one of my brake disc bolts out to measure up and see how they compare with what's available.

I realise this is possibly more of a braking question than an electrical question, but it's directly relating to the Acewell gauge, so I figured I'd put it here... hopefully that's not too confusing...

Here's what I measured:



And the closest I can find is this:

http://www.s3performance.com.au/m8-125mm-magnetic-bolt-for-brake-disc-p-52.html

The thread's a bit shorter and the head is 10mm rather than 12mm, so my question is... is it safe to run that instead of one of the standard bolts on the front disc? And I believe two bolts is better than one for getting speed sensitivity, so what about a second one as well? Still safe?

[landshark]

If you think about full floating discs and how they attach, as long as everything is secure you shouldnt have a problem.
I do have about half a dozen magnets that will do the job for you at less than a fraction of the price!
But i understand if you want to use the bolts.

[pete]

If you think about full floating discs and how they attach, as long as everything is secure you shouldnt have a problem.
I do have about half a dozen magnets that will do the job for you at less than a fraction of the price!
But i understand if you want to use the bolts.

Cool, although I got no idea about full floating discs... or how they attach... I need to Google!

I know heaps of people (including yourself) have stuck magnets on safely, but I just don't trust myself... I reckon for me it's safer just to fork out the extra $19 and know the magnet is properly attached... thanks for the offer though

[landshark]

Full floating discs can "move about", the working area and part that are attached to the wheel are two pieces.

[pete]

Full floating discs can "move about", the working area and part that are attached to the wheel are two pieces.

Aaah... I s'pose that's why they're called full floating hey? Sheeesh I can be a tad slow sometimes...