This 525/550-18 Excelsior tyre fits:

• Alfa Romeo 17/75, 17/85, 17/95
• Aston Martin Le Mans, Ulster and Third Series
• Bugatti Type 49 and Type 57
•  'Derby' Bentley 3.5 Litre
• Daimler 15hp
• Daracq MF75 and H78
• Delage D815 Sports
• Fiat 527
• Mercedes 370
• Morris Oxford Six
• Panhard et Levassor 18/50
• Renault Primastella and Vivastella
• Rover Meteor
• Singer Le Mans
• Standard 16 and 20