Rolled Bars With Pinion Pinion For Full-time Woodcutters That Need The Best Professional Cost / Life Ratio For Cutting Clean Wood With Small To Medium Sized Chainsaws. Features • Slim Shape, Excellent Maneuverability. • The Super-resistant Steel Alloy (molybdenum And Chrome) Gives Maximum Resistance To The Bar Body And Sturdiness To The Rails With Excellent Resistance To Wear And Chipping. • Replaceable Pinion Pin Kit (except Sp). Recommended Chainsaw Sizes Up To 2.3 - 4.0 Cu. In (38 - 65 Cc)