SOHC.co.uk Forums > CB500/550
Triggers bucket
Trigger:
I second that about the bolts Ewan. You need High tensile bolts.
Ewan 500 K1:
--- Quote from: Ewan 500 K1 on May 08, 2014, 09:03:36 PM ---
--- Quote from: pptom on May 08, 2014, 08:03:27 PM ---Very interested to know the answer to this too. The second disc setup I recently sold also has the same problem.
I removed it from a mates non running '77 550, so it either had a front end swap at some point or it was a model change.
I believe the disc is the correct 550 size, but caliper and bracket do not match with the new owners forks.
--- End quote ---
yep, that looks like the same 50mm bolt hole centres caliper arm ... which then seems odd that it came off a 500, unless the disc was also a larger 295mm non standard disc
Did the disc also come off the 500 ?
Does the purchaser mean that the caliper arm bracket holes dont line up with the holes on the fork case ?
What bike is he trying to fit it to ?
.. and he might not want to use the stainless bolts ... was told their low tensile strenth makes them a bit dodgy as disc bolts 8)
http://www.sohc.co.uk/index.php?topic=6550.msg35809#msg35809
--- End quote ---
.. and given what bryan says re pistons .. if the piston and seal are standard 500 ones , they might not fit that caliper if the caliper fits the caliper arm :-[
pptom:
He might be along soon....
As for the stainless bolts - I know it can be a much discussed subject and don't want it to become the subject of this thread but my reasoning was that lots of modern bikes use 6 x m6 bolts to secure the brake discs, these are m8 and they aren't subject to anywhere near the braking forces that modern brakes produce. I think it would be one hell of a shear force to break 6 x 8mm bolts, plus there is the resistance to corrosion etc.
Good enough for an aprilia rsv4, so it's good enough for me
http://www.pro-bolt.com/stainless-steel-disc-bolt-duca-ti-aprilia-m8-x-20m-fl-head.html#.U2vqgSe9KSM
Ewan 500 K1:
--- Quote from: pptom on May 08, 2014, 09:30:12 PM ---He might be along soon....
--- End quote ---
.. think I just saw him passing the window with a package under his arm 8)
Trigger:
If A2 stainless, they are very soft. The modern bikes are High tensile and a lot are chromed.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version