Triggers bucket

[Norniron]

Look at the mess trigger made

[Norniron]

And another

[Trigger]

A little Black Beauty. Only problem if you look at the third picture, the caliper is sitting high off the disc. That high that i can get my little finger in the gap. The pads are only touching 80% of the pad to the disc. Can anyone explain why???

[Ewan 500 K1]

mismatch of caliper pivot arm and disc ...ie one or t'other isnt the correct 550 part ?

[SteveD CB500K0]

I would say that the disc is too small.  What does it measure?

We can compare it to ours.

Steve

[Trigger]

Yes Ewan 550. It looks like the disc is too small. Will look again tomorrow.

[Ewan 500 K1]

Disc on my 500/550 mongrel is 277mm diameter. 500 & 550 share same disc.

[Trigger]

Ewan, cheers for the picture.The disc is 277mm and the caliper is the wide body type that matches the arm. Norniron will post some more pictures later. I can not work this out. I have just sold a 550F1 and that was fine. Never seen anything like this before.

[Trigger]

Oddjob, i am sure that the K3 had the same forks.  If the wrong sliders, that would mean that the mounting points would have to be 10mm lower. This would make the mudguard rub on the tyre of a 19inch wheel.

[matthewmosse]

I know some 500 / 550 forks do vary in length but cannot recall where this variation happened though I'm pretty sure the 500 has the shorter forks and k3 longer, but as for 550f I cannot comment, not had one.

[Norniron]

Triggers problem child

[Norniron]

The two types of arm ,on the bottom is a k3 arm

[Trigger]

Norniron, so which arm is the top? if the bottom is K3.

[Ewan 500 K1]

so next we want to measure the length of the lower fork case ? I have three sets... mix / match of 500 and 550's and not sure which is which . (Laterz ... the one marked 341 seems to be from a 750 K3-K5 and / or  550K1   All three are idential, save for one which is about 5mm longer. (550K3 ?)This one might be a 550K3 one) .. but even in this one the distance between the pivot mount bolt holes and the bottom are identical ... so all three sets would result in same caliper to disc relationship.  See attachments:


[ Guests cannot view attachments ] [ Guests cannot view attachments ]
Are we sure its not the wrong caliper arm thats on the bike ? I'm trending towards this being the problem

[Norniron]

Norniron, so which arm is the top? if the bottom is K3.

Cb500 so ive been told