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1977 Mazda Cosmo tire sizes

The 1977 Mazda Cosmo came from the factory with 1 tire size on 14" wheels. The most common size is 185/70 R14.

1977 Cosmo Base Model

Factory (OE) sizes

14"wheels
185/70 R14

How to read 185/70 R14

185
Tread width in millimetres
70
Sidewall height, % of width
R
Radial construction
14
Wheel diameter in inches

Overall diameter: about 24.2" · Sidewall: 130 mm

Mazda Cosmo tire sizes by year

1976 1977 1978

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