Dunlop Motorsport Tyres Motorsport Racing Tyres / Dunlop Racing Tyres / M Section / 500 M15 Dunlop Historic Race Tyre 500 M15 Dunlop Historic Race Tyre Most common fitment for this tyre are Porsche 911 and pre ’66 Alfa Romeo Touring cars. FIA Appendix K required tyre in historic racing. Tyre Size Information: Size 500M15 Pattern CR65 Permitted Rim Width 5.5 – 8.0" Optimum Rim Width 7.5" Diameter Overall 648mm (25.5") Width Overall 221mm (8.7") Tread Width 152mm (6") Revs Per Mile @100mph 791 Request Quote: Name: Email: Mobile: Comment: Thank you! We have received your request and a member of our team will be in touch shortly. Our Services Read more Read More Read More Read More