Bicycle Motor Works Performance Spring Chain Tensioner

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The best deal on this quality dual-bearing spring chain tensioner! Not only is the pulley fitted with a sealed bearing, but the lever is also on a sealed bearing as well. This sure beats relying on bushings and spacers/washers like the competitors use. Keeps your chain properly tensioned at all times. This prevents chain binding, derailing, and excessive chain wear. Fits 2 stroke and 4 stroke motorized bicycles alike. NOTE: some pulley arms are silver and not black like in pictures. These will function exactly the same, and there is no other difference besides color.spring chain tensioner 2-stroke bike engine

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