Floating Mount Tensioner
XM, X-SERIES / FLOATING MOUNT TENSIONERS, FLOTATING MOUNT FOR REVERSIBLE DRIVESFeatures, Floating Mount, Maintains preset tensioner for reversible drives, Automatically adjusts when drive direction is reversed, Idler Shaft Must be Ordered Separately, Compatible with a Wide Array of Sprocket and Pulley Idlers, Unit of Measure: EA.