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Allan G Offline OP
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Will one fit?

I’ve always used Iwis Megalife chains (none o-ring) with good success, compared the standard DID and new Renold chains they seldom need adjustment.

Sadly the place where I always got my chain from has closed its doors and I struggle to find Iwis megalife chain. Believing that the DID and Regina o’ring chains etc are pretty decent I’m wondering if one will fit without having to machine the sprockets and use a 520?


Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (now rebuilt)
67’ D10 sportsman (undergoing restoration)
68’ D14 trials (undergoing transformation)

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I get IWIS from Jason "The Chain Man".

jason at the-chain-man dot co dot uk


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Other option is the thinnest 530 X ring chain on the market

https://www.jim-allan.com/29961-rk-530-uwv-silver-chain-x-100.html

Worth a google to see if its cheaper elsewhere as its a pricey chain.

Quote
GP530UWV chain is the ideal replacement sealed chain for vintage motorcycles that were originally supplied with non-sealed chain

530UWV chain features an ultra thin UW ring seal.
UW-Ring making it possible to have a chain width very similar to the original, non-sealed chain

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DID 520 xring fit or one similar, if you machine the sprockets narrower. Machine or grind the front one on the Gear box side moves it out slightly. Sprocket life may be slightly less but chain lasts a long time and are very strong.


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Allan G Offline OP
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Originally Posted by Hugh Jörgen
I get IWIS from Jason "The Chain Man".

jason at the-chain-man dot co dot uk

I did go on Jason’s site (albeit via my phone) all his stock just said “prices from” I know some sites are minimal versions when used on phones etc so I’ll try again on the laptop.

Originally Posted by kommando
Other option is the thinnest 530 X ring chain on the market

https://www.jim-allan.com/29961-rk-530-uwv-silver-chain-x-100.html

Worth a google to see if its cheaper elsewhere as its a pricey chain.

Quote
GP530UWV chain is the ideal replacement sealed chain for vintage motorcycles that were originally supplied with non-sealed chain

530UWV chain features an ultra thin UW ring seal.
UW-Ring making it possible to have a chain width very similar to the original, non-sealed chain

I’d be interested to hear from someone that has used one of those chains, I used a standard RK once on my 250 off road canam and it needed adjusting each day, I’m surprised it never snapped.


Originally Posted by Mark Parker
DID 520 xring fit or one similar, if you machine the sprockets narrower. Machine or grind the front one on the Gear box side moves it out slightly. Sprocket life may be slightly less but chain lasts a long time and are very strong.

This did cross my mind, I believe a lot of modern bikes use 520 instead of 530, but I’d rather just use a decent standard chain than machine sprockets to suit.

If an O’ring goes straight on then I’ll use it, (the bike will be running 22:47) if not then I’m after recommendations for a standard chain.

Hugh, in the meantime I’ll drop Jason a message as well.


Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (now rebuilt)
67’ D10 sportsman (undergoing restoration)
68’ D14 trials (undergoing transformation)

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Hi Alan. Yes, not the most intuitive website.
Just now was the first time I've looked at it.
Responds quickly to email. That's how we've done business.
Good luck.


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For standard 530 chain I am very pleased with the DID currently fitted, a bought two for about 35 quid each, when the fitted chain is looking sorry for itself i swap it for its cleaned and lubed twin, this is easier than operating the chain adjusters and has more than doubled the maintenance interval. I use paraffin with 6 rinses to clean, then hang to dry, then boil in chain lube which has moly in it. No spatter is another bonus.


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Originally Posted by Allan G
Will one fit?

I’ve always used Iwis Megalife chains (none o-ring) with good success, compared the standard DID and new Renold chains they seldom need adjustment.

Sadly the place where I always got my chain from has closed its doors and I struggle to find Iwis megalife chain. Believing that the DID and Regina o’ring chains etc are pretty decent I’m wondering if one will fit without having to machine the sprockets and use a 520?
I use a DID VX530 on my Trident. It does grind away some of the oil seal plate and two of the screws, at least with 18T and 19T sprockets, but entirely tolerable and not noticeable at all when it happens. Width across pins is 23,5mm or close, while most other chains, O-ring or X-ring, are 25mm or more. I've also fitted one to a T140, with no clearance issues at all, and will use them on all my future projects. It's been on my Trident for the last 8000km and I haven't adjusted it once. The Iwis non-sealed chain I bought from Andy the Chain Man was a total wreck after 5000km.
I have friends who boil their chains in grease several times pr season, but it doesn't help much, is a waste of time and messy as hell. I decided long ago that it wasn't for me, so I started using O-ring chains around 1990, a Tsubaki, on my Bonnie, and on my Rocket 3 in 94. Andy convinced me to try the Iwis non-sealed on my Trident, but I wish I hadn't, a total waste of time and money.
I've considered going to 520 but was worried that the gearbox sprocket may wear faster. As we all know, they're a pain to change.

SR

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Allan G Offline OP
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Thanks Stein, that sounds promising.

I’m not too stressed about changing sprockets, the BNR on the A65 makes changing the gearbox sprocket a quick and clean affair. I’ve come to find that a decent chain will allow a set of sprockets to last a very long time, soon as they start to wear the sprockets start taking a hammering. I just don’t want to start paying for someone to machine sprockets for me.


Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (now rebuilt)
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68’ D14 trials (undergoing transformation)

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Originally Posted by Allan G
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I just don’t want to start paying for someone to machine sprockets for me.

I'm generally careful with my money, I would therefore be tempted to take a file to the sprockets.

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Originally Posted by Hugh Jörgen
1970 T120R - 'Anton'
1970 Commando - 'Bruno'
1967 T120R - 'Caesar'
1968 Lightning - 'Dora'

Anton, Bruno, Caesar, Dora - The gun turrets on the Bismark.

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I'll take history for 500 Alex. beerchug


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Are these not generic terms for Kriegsmarine main armament? As per "A" , "B" , "X" and "Y" for the RN?

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Sprockets are hardened, fronts are a bit hard to do on a lathe. A file will not do it. It's a shame no one makes them in 520. I use stock on a 650. It's so easy if you can buy them, the rear on 883 is not standard and it needs the extra strength of the 520.


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Talon in the UK make A65 sprockets and will make a 520 as a one off special order, but they're not cheap, about £100 + VAT and 12 week lead in time, but they're decent quality and will give decent mileage.
Or you can jig up a standard one in your drill and carefully wack the side off it with a 4" grinder until you're down to 520 size.

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Whats the difference in weight between a 520 o ring chain and a 530 non o ring?, if it was significant i would consider it.


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I think there is a BSA model single that uses a 520 front sprocket that fits but it needs 21or 22T with std rear wheel, and I don't think they go that big. You can just grind one down on a wheel with gloves and a mask, and covering the seal area, just turning by hand. Someone with a lathe and decent cutter could do it easier.

I doubt there is much weight difference in chains just maintenance and load rating. Me enjoying riding not working on stuff.


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Difference in weight is likely dependent upon the brand. RK chain dimensions and weight are here:
http://www.vleonline.com/pdfs/RK_CHAIN_39_WEB.pdf
Presumably you would be comparing the heavy duty 530 to the performance 520 o-ring. I would go for the 525 over the 520 chain if it will fit. 2mm wider than a 530 non-O-ring. Wear life index of 750 vs. 200 is fairly significant.
I would not grind a sprocket by hand. It is not just narrower, it has a curve to lead the sideplates into the gullet.
12 week lead time sounds like they are filing the sprocket down by hand.

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@ Mark Parker, in the previous century I've dressed worn sprockets with a file before reversing and reusing, as I'm sure others have as well. Relieving a sprocket with a file to fit an "O" ring chain might be a bit ambitious.

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We ran a 520 on the sidecar outfit as it gave a little more tyre clearance.
The front sprocket is rock hard and a bugger to machine. We used Dural
rears so just bought go-kart ones and turned 'em.
Only ever broke one 520, it had done two meetings and broke on the third.
Just changed it every meeting after that.

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I use turned down A65 sprockets on my B50 land speed bike. My friend Doug in Colorado just chucks them up in a good lathe and with a carbide tool bit, turns them down.

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Not sure my poor little lathe would be happy about the interrupted cut on the teeth, but those carbide cutters do work wonders. I was fretting about have to narrow the outer race of a roller bearing and the local guru said just chuck it in the lathe and turn it.

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Or mount a dremel in the toolpost, I got a clamp that allows me to do that, use it to grind OD of bearings. You need to protect the ways from any grinding dust.

Just one example, they are sold in US too.

https://www.ebay.co.uk/itm/DREMEL-TYPE-TOOL-HOLDER-CAST-METAL-FOR-LATHE-OR-VISE-MOUNTING-GLOBAL-POSTAGE/203231241190?hash=item2f5186a3e6:g:ZGgAAOSwJoZfXM5a

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Are there other models that use the same spline but with a 520 chain?


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Allan G Offline OP
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I guess Andy that even if the spline is the same, there’s no guarantee the alignment will be and it may require shimming or further machining.

I’ve gone for the HD DID chain for now DID530NZ, I think this will be a similar thickness to the 530VX as mentioned earlier but as most these O’ring chains use a soft (rivet) link, I’m not sure how I’d address fitting/removing the chain.

Trying to find chain over 110 links is also not easy though I’ve managed to order 120 links in the HD chain. This can be shorted to suit, I believe I’ll need 112 links.


Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (now rebuilt)
67’ D10 sportsman (undergoing restoration)
68’ D14 trials (undergoing transformation)

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