• Looks the same as the DMR ones but with a different branding. I hear they are not very good. The type with a spring and jockey wheel, like surly (I haz) are supposed to be a lot better.

    4 Jeri Tensioner is the best IMO, I been abusing one for 4 years now on my single speed, and it is a little rusty but it keeps going ... unfortunately not like the rear wheel that looks like a pringle at the moment.

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