Does anybody know if there is a higher tensile strength primary chain than the OEM one?

 

http://www.ebay.com/itm/Tsubaki-Prim...item4cfcbbe12e

Don't know strength of this one , but when I have to replace mine, it will be a Tsubaki. I've run their o-ring final drive chains , for years & can't wear em out.
Ride safe,
Harold

 

That's a weird question! Those things are almost indestructible. Why do you ask?

 

In my other thread about the M6 Doug told me how his M6 stretched his chain. I took a closer look at mine and after about 10k of having the M6 in mine my chain is stretched.

So I was just looking to go back in with the strongest chain I could get.

 

That's worth knowing, thanks. I'll be going into my primary soon, so will check my chain and M6 closely.

 

How exactly do you know it's "stretched"? Run out of adjustment? For the record, chains don't really "stretch", they elongate from wear between the pins and bushings.

I've never run a primary tensioner, and have never had a problem with primary chain stretch. I rarely have to adjust the chain, and I replace it any time I have the primary open after 40,000 miles on the chain.

 

Uncle G, you've actually put your own finger on the answer! As the pins wear the pitch of the chain gets longer, so that eventually adjacent rollers don't sit properly down in the teeth, as they pass round a sprocket.

On my own bike, when installing my 107" engine, the teeth of the compensator were beginning to get sharp, because the chain had stretched and the rollers were catching the tips of the teeth. We changed both, but the clutch sprocket was fine.

 

I put the OEM chain adjuster back in and ran it all the way up and still had too much slack in the chain.

Stretch and elongate are just about the same thing aren't they?

 

Yep, pretty much. Mines getting replaced this winter as it has stretched/elongated to the point I have very little adjustment left. 75,000 miles on it (OEM): it's due.

 

I ordered a new chain from the Diamond chain company. Hopefully it will be in tomorrow and I can put her back together.