1978 Triumph Spitfire tire sizes
The 1978 Triumph Spitfire came from the factory with 1 tire size on 13" wheels. The most common size is 175/70 R13.
1978 Spitfire Base Model
Factory (OE) sizes
13"wheels
How to read 175/70 R13
- 175
- Tread width in millimetres
- 70
- Sidewall height, % of width
- R
- Radial construction
- 13
- Wheel diameter in inches
Overall diameter: about 22.6" · Sidewall: 123 mm