1981 Triumph TR7 tire sizes
The 1981 Triumph TR7 came from the factory with 1 tire size on 13" wheels. The most common size is 185/70 R13.
1981 TR7 Base Model
Factory (OE) sizes
13"wheels
How to read 185/70 R13
- 185
- Tread width in millimetres
- 70
- Sidewall height, % of width
- R
- Radial construction
- 13
- Wheel diameter in inches
Overall diameter: about 23.2" · Sidewall: 130 mm