IRC RX-01 ROAD WINNER MOTORCYCLE TIRE REAR 140/70-17 Unique, aggressive tread design Narrow grooves create a flexible tread surface for a superior roadholding performance Stronger casing construction for better stability The use of the tire and other vehicle data and information accessible through this webpage is limited to persons located in the United States of America and Canada.ALTHOUGH THE DATA IS BELIEVED TO BE ACCURATE, NO WARRANTY OR GUARANTEE IS MADE REGARDING THE QUALITY OR ACCURACY OF THE DATA.All data should be verified by a tire professional, the vehicle placard (typically located on an inside door panel or on frame), and/or the vehicle owners manual.