Pro Taper Chain - 520MX O-Ring Off-Road ChainSlim outer plates with forged pin collars for added fatigue strength and chain life Chromium Carbide layered pins for reduced friction and impact load absorption O ring model features Slim O Ring Technology for narrow chain width, eliminating clearance issues Specially developed gold color surface coating to reduce corrosion and give factory look Designed to perfectly match ProTaper RS Sprockets for maximum power output and extended chain & sprocket
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