Dunlop Motorsport Tyres Motorsport Racing Tyres / Dunlop Racing Tyres / L Section / 450 L12 Dunlop Historic Race Tyre 450 L12 Dunlop Historic Race Tyre Correct size for early IMP and Stanguellini. FIA Appendix K required tyre in historic racing. Tyre Size Information: Size 450L12 Pattern CR65 Permitted Rim Width 4.0 – 7.0" Optimum Rim Width 5" Diameter Overall 540mm (21.3") Width Overall 175mm (6.9") Tread Width 118mm (4.7") Revs Per Mile @100mph 968 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