I have a Salsa El Mariachi and it has the factory Bushnell "eccentric chain tension adjuster" as Bushnell Cycles calls it... it is decent design but as I am sure many others have found the holes in the ends let alot of crud in and it is a constant up-keep issue. Other than that I have not had any major issues so it serves the purpose.

I am wondering what some other options might be? I have read about the new Niner one and some others but not sure of price (their website shows a blank page?) nor how standard the bottom bracket area is on frames. I also would like some real world feedback on the good the bad and the ugly on what others have used.

Thanks for any feedback-