Michelin XWX 185/70VR15 Tire The only radial tire which could be fitted on the fastest cars in the world in the 1970s, the Michelin XWX gives these high speed vehicles outstanding road holding ability and remarkable grip. Michelin XWX tires featured construction designed to reach an incredible 186 mph top speed. The special features of the XWX result in remarkable performance, combining speed, driving pleasure and safety. The original design of its internal construction, together with its flexible carcass give exceptional comfort when traveling at very high speeds. Being a VR category tire, the XWX can be used at speeds in excess of 210 kph (131 mph) ; with a maximum speed of 270 kph (155 to 186 mph). At the end of the 1960s, Germany and Italy were the leaders in the European motorway development program and were also the main producers of cars which could reach speeds in excess of 200 km/h, (124 mph). The wide asphalt strips and the absence of speed limits offered a privileged few the opportunity to make full use of the performance of these "super-cars" at speeds which would be unthinkable today. The Lamborghini Miura (1966), Ferrari 365 (1965), Maserati Ghilbi (1966) ; de Tomaso Pantera (1970) and Porsche 911 Carrera RS (1972) were the undisputed stars, but the large German saloons like the Mercedes 300 SE 6,31 (1968) and BMW 3.0 SI (1971) also made a strong impression. The French were also in the high speed game with the Citroen SM (1970) as were the British with the legendary Jaguar V12 E-Type (1970) and Aston Martin DBS (1967).Popular on: 1961-1970 Volvo P1800, 185/70 HR15 89HPopular on: 1973-1989 Porsche 911, 185/70 VR15 89W (F+R), 215/60 VR15 94W (R) V Speed Rating V Speed Rated: Up to 149 mph (240 km/h). Often required OE for higher performance trim level automobiles. Michelin XWX tire Grip for ultimate 70s supercars. The special architecture of the XWX ensures it delivers high performance that combines speed, driving pleasure and safety. Michelin Brand Collector Vehicle Tires Michelin is known for its high quality tires, and we keep thousands of popular Michelin tires in stock every day. Our Michelin product offerings include fitments from the 1920's all the way into the 2000's, with an intense focus on classic sports cars. Build quality, fitment options and period correct styling makes the Michelin product line a favorite among sports car enthusiasts around the world. P185/70R15 Tire Conversion Chart Similar Size Bias Ply Alternative: 640-15 Similar Size Bias Ply Alternative: 685-15 Similar Size Bias Ply Alternative: C78-15 Similar Size Radial Alternative: 175R15 Similar Size Radial Alternative: P175/75R15 Suggested 5-6 inch wide rim. 185/70R15 Fitment Chart Austin Healey 100/4, 100/6 & 3000 MGC Triumph TR4, TR5, TR6 Volvo P1800 1980-82 Porsche 924 Turbo (OE with 185/70VR15) 1980-83 Porsche 911 SC Front (OE with 185/70VR15) 1984-86 Porsche 911 Carrera Front (OE with 185/70VR15) Fits these models and others. Please refer to your owners manual for details on the correct tire fitment requirements for your model and trim level. 185/70R15 Fitment Chart 1984-1986 Porsche 911 Carrera Front Standard Front 185/70VR15 1980-1983 Porsche 911 SC Front Standard Front 185/70VR15 1980-1982 Porsche 924 Turbo Standard 185/70VR15 Fits these models and others. Please refer to your owners manual for details on the correct tire fitment requirements.