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G15 Questions

Re: G15 Questions

Postby BillT » Tue Oct 14, 2014 7:28 pm

Thanks, Andy.

Next time i need a chain, I'll contact you.

The crank link I got was a double, and the chain had less than a hundred miles on it when I added the crank link. The setup the bike came with just did not work with an even number of links, hence the crank link.
'73 Norton 850 Commando - 3030xx
'69 Norton Ranger 750 - P11/1289xx
'67 Matchless G15CS - G15CS/1235xx
'61 Matchless G80CS - 61/G80CS/41xx
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Re: G15 Questions

Postby dave M » Wed Oct 15, 2014 11:45 pm

Bill, do you happen to recall how many links your chain was? I need to bring one with me the next time I am in the U.S. and don't want to bring more than I need.

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Re: G15 Questions

Postby BillT » Mon Oct 20, 2014 5:30 pm

dave M wrote:Bill, do you happen to recall how many links your chain was? I need to bring one with me the next time I am in the U.S. and don't want to bring more than I need.


I started with a 98-link chain, but was able to shorten it to 97 with that cranked link. I think the shortest universal modern chain is 110 link, so you should be fine.
'73 Norton 850 Commando - 3030xx
'69 Norton Ranger 750 - P11/1289xx
'67 Matchless G15CS - G15CS/1235xx
'61 Matchless G80CS - 61/G80CS/41xx
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Posts: 1589
Joined: Sun Jan 27, 2008 9:51 pm
Location: Broward County, Florida

Re: G15 Questions

Postby andychain » Tue Nov 11, 2014 3:29 am

The problem when using chains without a cranked link where the drive was designed
with one is that it becomes very difficult if nigh on impossible to get the tension right
between the gearbox and the rear drive.

This is more of a problem in USA and OZ as the vast majority of chain is Jap and cranked
links are just not available.

Ask around for 10B-1 (most rears) and 08B-1 (most primary) and crank links then become
available....OK you will more than likely get sold crap but it will fit.

I have recently sold several chains to NZ where a few lads got together to reduce carriage
costs, in fact one said that even with the shipping the chain was cheaper and better than
he could source.

In USA just ask Bill at GT Engines about me and my product.

Andy

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Re: G15 Questions

Postby N0rt0nelectr@ » Mon Jan 12, 2015 1:17 pm

I had one years ago. (wish I still had it) but yes the CSR is stamped into the cases.
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Re: G15 Questions

Postby andychain » Fri Jan 23, 2015 8:18 am

G15s had 97 link chains, however some years had 98 link.

I always say take longer with a crank included as you never know
what previous owners have done. Also a factory if the builder ran
out of sprockets they would go to the next bin and fit whatever.

This also applied to primary drives where often the gearing was
different for sidecars.

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