Re: Chain Tensioners
Looks like these are for the dropouts on your bike. The axle goes through the round rather flat part and the other end butts up against the end of your drop outs. It makes it so your axle can be adjusted with the nut on the end. If you tighten or loosen that nut it will move the axle forward or backward. This is no way intended to rub up against the chain. I wish I could find a picture to show you but this isn't what WE think of when we think chain tensioners. Hope this helps.
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