Dunlop Motorsport Tyres Motorsport Racing Tyres / Dunlop Racing Tyres / L Section / 550 L15 Dunlop Historic Race Tyre 550 L15 Dunlop Historic Race Tyre Popular fitment for Austin Healey and pre ’65 GT car, such as Porsche 911. FIA Appendix K required tyre in historic racing. Tyre Size Information: Size 550L15 Pattern CR65 Permitted Rim Width 4.0 – 7.0" Optimum Rim Width 6.5" Diameter Overall 659mm (25.9") Width Overall 204mm (8") Tread Width 128mm (5") Revs Per Mile @100mph 777 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