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Discussion Starter · #1 ·
totally dumb question i know, but can't find a more specific answer.

so setting up my freshly hardtailed bike. got a new o-ring chain(drag spec) and wanting to know how far they will stretch, i can either sett up my wheel at the very start (looks kinda funny) of the dropouts or just past the middle of them. i read elsewhere that after 2.5% stretch it should be replaced. non-oring 102X2.5%=2 links (rounded) the only way to get a 2-link stretch would be setting the axle in the front.

every-one says they stretch but how much?

i would imaging im overthinking this and everyone sets them up center of dropouts. just dont wanna have to buy chains all the time. (less adjustment length)

thanks
ryan
 

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You ARE over-thinking this. Set it up just forward of the centre. Very little movement is needed to adjust chains, so you'll likely never use more than about 1/2 of slot, ever.

Just FWIW, I replace chains when I can see air under a rearmost link (back of the sprocket) when the link is pulled away from the sprocket.

Cosmo
 

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I agree with Cosmo you are over thinking this. I have an automatic chain tensioner on both of my big twins. I hate adjusting chains, I find it to be a PITA to get or keep the wheel straight.
 
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