It was specially made at the Kurtis factory for Howard linne for the big racers they ranged from 50 laps to 100 laps. Was lightheaded larger fuel tank had cross torsion split bars as well dry dumped 110 offy motor. It has magnesium 12” wheels full alloy body. Restored to as close to as it was ordered from the factory by Howard linne restoration complete February 2022.