KH500 Primary Chain

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Barend Joubert
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KH500 Primary Chain

Postby Barend Joubert » Fri Dec 25, 2015 4:11 pm

I am using a modern type chain on the primary drive for the KH500, however found that it appears that I need a half link to get the tension right on the chain. Modern chains, however, do not come with half links, thus resulting changing the primary sprocket. Any suggestions on a type of chain where half links are available, would like to go back to the recommended sprocket size.

Thanks, Barend

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robjameson
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Re: KH500 Primary Chain

Postby robjameson » Fri Dec 25, 2015 6:39 pm

I would use a classic chain, usually now referred to as 'industrial'. Modern chains tend to have o rings and are quite often wider, from what I can tell they are only different from a maintenance point of view, and designed to operate better with less frequent lubrication, and therefore, on a primary side being bathed in oil (don't fill it up to the level plug, just as far as the chain is touching the oil), a modern chain is completely unnecessary.
Rob Jameson
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1957 Ariel VH
1956 Ariel KH (LARGE project!)

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charles.bulloch
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Re: KH500 Primary Chain

Postby charles.bulloch » Fri Dec 25, 2015 9:45 pm

Dear Barend,

I used to use Reynolds chain. Which used to be the best. The last time it was industrial chain from an agricultural suppliers and it lasted no time at all. Possibly motorcycle chain has thicker side plates and can better take the strain. So I replaced it with the stuff they had in the local motorcycle shop (non o ring) which works fine.

happy Xmas

Charlie

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Re: KH500 Primary Chain

Postby david.anderson » Sat Dec 26, 2015 6:24 am

Industrial chain is not worth putting on. It is meant for light duty industrial work and not to transmit 27 Ariel horses.
Regina is a reasonable quality chain and is available from drags with the half link. If you want the best then it has to be Iwis although locally I cannot buy Iwis chain with the half link.
In the UK try this supplier (he will post international and his price, including post, to my friend was less than I paid locally). He may be able to supply Iwis with the half link. His service was excellent.
http://www.the-chain-man.co.uk/index.html
David

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Re: KH500 Primary Chain

Postby nevhunter » Sat Dec 26, 2015 7:14 am

Heavy side links don't indicate strength or quality. The KH wouldn't be anywhere near as hard on a chain as the OHV 500 would be. I/2 links are a bad idea but you usually end up needing them. DID or IZUMI are good but I don't think they make 1/2 links the industrial chain isn't worth buying. Don't use chain with split rollers. It's real cheap quality. There is actually a diference between roller sizes with some imperial to USA standards of chain. If it sits nicely on the small sprocket it will be OK. If you hold it on both sides hard on the sprocket,you shouldn't be able to lift the chain from the bit in between where you are holding it.. Most M/C chain is "O" ring "X" or "Z" ring, which we don't need. It's too bulky. Nev

Barend Joubert
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Re: KH500 Primary Chain

Postby Barend Joubert » Sat Dec 26, 2015 5:30 pm

Thanks for all the advise, our local motorcycle shops stock the DID range in various ranges and quality, no half links available, will however play around with the primary sprocket to try and stay away from the half links.

All the advise is much appreciated, Regards, Barend.
PS: Next question to follow

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Re: KH500 Primary Chain

Postby Simon.Gardiner » Mon Dec 28, 2015 1:25 am

These days motorcycle chain is fairly specialised and usually 'O' ring. Ariels (and all similar) use standard transmission chain. I get Renolds from a local bearing factor. Renolds used to be in 3 grades, I think what we used to see as the 'good quality' Renolds is now the highest grade, I economised and bought middle-grade because frankly the bike isn't going to do the mileage that it used to.
If ordering from chain suppliers don't ask for a half-link, specify a cranked link - a half link is something completely different and not what we're used to seeing in motorcycle applications.

SG
'55 Huntmaster, '56 VH, ' 51 VH, '80 R100RT, '00 Sprint ST (but all those Ariel parts can only make one running bike...)


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