SOHC.co.uk Forums > CB500/550

CB550K3 fork ears compatibility

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Oddjob:
Let me know when your ready.

Bookmark1:
I’ve managed to get the stems out of the old ears. They are 63mm long with a diameter of 20mm. The thread is 12mm long with a 12mm diameter. If this all ties in your end I’ll PM you to sort out payment and delivery. [ Guests cannot view attachments ]

Oddjob:
Those are stems from a US model, are you keeping the US indicators which are big dish type or fitting UK style ones. If your going for UK ones that could be a big problem as the front stems are different and the rear ones are as well. The front you can find, but damned hard, the rear are virtually unobtainable. Those stems should fit just fine if your keeping the US style indicators, the UK 550K3 got the exact same indicators as the US 550F.

Does the bike still have it's grab rail fitted?

Also if it's an import it's very likely the left hand switchgear is wrong, the US didn't get the passing/horn button combination we got in the UK, it only has a button exactly like the starter button.

None of these are huge problems it's just that most people tend to want to convert to UK specs when they are doing a restore. There are some other small differences but the switchgear and the indicators are the main ones.

philward:



--- Quote from: Oddjob on May 03, 2022, 02:22:44 PM ---Those are stems from a US model, are you keeping the US indicators which are big dish type or fitting UK style ones. If your going for UK ones that could be a big problem as the front stems are different and the rear ones are as well. The front you can find, but damned hard, the rear are virtually unobtainable.

Are these the rear stems Ken - off my 500k2 (converted mine to UK)
If they are worth something, I'll sell them on!



Sent from my moto g(50) using Tapatalk


--- End quote ---

Bookmark1:
Hi Oddjob.
The indicators are quite large so, going by what you have said, I would imagine that they are US spec. Both front indicator casings are in very good nick but only one remained totally intact - I will have to get a new lens for the other.
The rear indicators both need lenses and I will have to try and straighten out one of the casings (it is more square than round, lol) but I want to keep them.
Funny thing is the bike was UK registered from new so somebody must have changed the indicators out at some point!
As to a grab rail - it didn’t have one.
Will these fit the fork ears you have as I know there are different specs e.g 12mm and 10mm fittings?

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