Primary Chain

vincenttwin

Well Known and Active Forum User
VOC Member
Any one know what Jwis/iwis duplex chain number is correct for A comet , I have in my notes
3/8”x7/32” 92 links I think it could be a D67ZN But Iwis wants a better number .
Or is there a good chain other folks have used .
My Jwis is totaly wore out after 18,000 miles and there is no number on it .

Thanks
Peter Allen
 

Dinny

Well Known and Active Forum User
VOC Member
I will check my new chain tomorrow and let you know if there are any markings on it, it came from Conways.

Cheers
Mark
 

chankly bore

Well Known and Active Forum User
Non-VOC Member
Standard is 94 pitches, according to "Richardson", but maybe your clutch drum is non-standard. Tsubaki (Japanese) make good post-war triplex, might be worth researching their duplex range.
 

vincenttwin

Well Known and Active Forum User
VOC Member
Peter, you know someone at Conways, don't you? ;)
Well I put in a order at conways back in early dec and have yet to see anything or even get a email reply after I had to ask the owner in Dec ,if they were answering emails ?
Nope have not had a in at Conways in 10 years
 

vincenttwin

Well Known and Active Forum User
VOC Member
Standard is 94 pitches, according to "Richardson", but maybe your clutch drum is non-standard. Tsubaki (Japanese) make good post-war triplex, might be worth researching their duplex range.
Standard on a Prewar A comet is 92 pitches ,the twin is 94 per my Richardsons.
 

Robert Watson

Well Known and Active Forum User
VOC Member
When I built my Twin and TTR and Dan did his A plus we just bought a 25ft box of the stuff and lots of connector links. It took a while but well worth it. we each have two A's, or in someones case only facsimiles thereof and each a spare, so if you know someone else looking for some, well worth buying a box.
 
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