Oregon Double Guard bars are perfect for the occasional woodcutter using electric or small gasoline-powered saws with 90-series Micro-Lite, 91 low profile chains or 1/4"-pitch 25AP chain. The slim symmetrical contour is light in weight, maneuverable and reversible extending this bars usable shelf life. This bar is recommended for electric or gas saws up to 2.5 cu. in (41 cc).