The best pad for the best motorcycle. We highly recommend these pads for the 4V boxer, as they far exceed the most stringent braking requirements. The facts: Ceramic underlayer reduces heat transfer from pads to calipers. Grooves in pad channel water and dirt away. Environmentally friendly manufacturing (without asbestos, cadmium, lead or formaldehyde). High durability. Can be used on any brake discs. Special compound for rear brake (reduce blocking of rear wheel). With model approval certification. Won the famous MOTORRAD motorcycle magazine comparison test (Edition 4/98. Tested against 6 other compounds on a Honda VTR 1000 F). Full metal compound mixture. Very high abrasive coefficient. Needs only minimal bedding in time. Excellent braking also in wet conditions. Very durable. Sold as Set for one brake disk.