The MEFO tire, all the talk on the ADV discussion boards, as available at Motostrano.com This MFE 99 Super Explorer is a tube-type DOT-approved rear tire with a load and speed rating of 70R.  The MEFO Explorer is the long distance professional dual-sport tire. Customers have reported to us that a set of Explorers can routinely take about 7,000-9,000 miles of use under the harsh adventure-touring conditions of Alaska. With secure, stable handling on dirt or wet pavement and high mileage performance, the Explorer has excellent all around versatility. Recommended for 50% street and 50% dirt riding. A great tire that will go anywhere and get you home again! DOT-approved.