SOHC.co.uk Forums > CB500/550

Chain

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Bryanj:

--- Quote from: Bryanj on April 17, 2022, 09:29:06 PM ---I do know an out of the box aftermarket O ring 530 chain will rub into the blanking seal and crankcase on a 550, saw it a few times so it should do the same on a 500.
530hd chains of today are stronger than 530hd chains in the 70's  alegedley

--- End quote ---

Oddjob:
Not a single mark on anything in the chaincase area on mine Bryan and I did thousands and thousands of miles with that chain off the cbx550 fitted.

I must measure the pin length and see what it was.

Johnwebley:
Just measured the width

20mm

The replacement chain, supplied by Wemoto is DID530NZ,

100 link,a little over long, so I took a pair of links out.

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Oddjob:
That pin length John? and I presume that's the standard DID heavy duty non O-ring chain not the Wemeto O-ring one.

The new CB650/CBX550 measured 24.5 and the 530 O-Ring in the kit was 24.2. So if yours was 20mm pin length that means a 4mm difference, with 2mm either side.

Thinking about this, I wonder if the cause of the rubbing/hitting reported by using wider chains like O-Ring ones is actually caused by the front sprocket. I did see something on YouTube regarding badly fitting cheap sprockets which oscillate due to bad machining,  this allows the chain to in essence weave around and if space is tight it would cause the damage being reported. 

Johnwebley:
Two things,

The 20mm is the widest part,the heads of the pins,
Secondly, it should be difficult for the sprocket to move as well locking plate should hold it in position.

Any further thoughts?

I admit I can't be bothered to remove the sprocket cover to check the clearance,

I was just inquiring for the next time I need to swop a chain.

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