MG MGB tire size
Original tire sizes for the MG MGB, model years 1962 through 1980. Trim levels and wheel packages change the size within the same year, so confirm on the door-jamb sticker before ordering.
Check before you order. The surest answer is the tires on the car right now: the size is molded into the sidewall. The placard inside the driver's door tells you what the factory fitted. Our guide on reading a tire size shows exactly where to look.
Size by year and trim
| Model years | Trim or package | Tire size | From |
|---|---|---|---|
| 1962-1980 | 14x5 radial upgrade | 185/70R14 | $45 |
Tire size by model year
| Model year | Tire size | Trim or package | From |
|---|---|---|---|
| 1980 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1979 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1978 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1977 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1976 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1975 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1974 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1973 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1972 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1971 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1970 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1969 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
Show the remaining 7 model years
| Model year | Tire size | Trim or package | From |
|---|---|---|---|
| 1968 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1967 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1966 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1965 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1964 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1963 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
| 1962 MG MGB | 185/70R14 | 14x5 radial upgrade | $45 |
Which brand should you pick?
MG does not stamp its own approval code on tires the way Porsche or BMW do. Any tire in the right size that meets or exceeds the load index and speed rating on your door placard is a legitimate replacement, so pick on wet braking, tread life and price. Our picks for each size are on the size pages below.
The drawing carries the sizes we list for this car, so you know what you are looking for. The placard on the car is still the final word, and it is the only place that gives the cold pressures: the number molded into the sidewall is the maximum the tire can hold, not what your car wants.
What those tires cost
MG MGB tires: common questions
What size tires does a MG MGB take?
The most common original size is 185/70R14. Other model years and trims use different sizes, so check the list on this page and confirm against the sticker inside your driver's door.
Can I fit a different size on my MG MGB?
You can, within limits: the overall diameter should stay within about 3 percent of the original, and the load index and speed rating must meet or exceed the door placard. Anything further changes your speedometer reading and can rub at full lock.
Where is the tire size on a MG MGB?
Open the driver's door and look at the white and yellow placard on the door jamb or the B-pillar. The same size is also molded into the sidewall of the tires currently on the car, unless someone changed them.
What size tires does a 1980 MG MGB take?
The 1980 MG MGB came from the factory on 185/70R14. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.
What size tires does a 1979 MG MGB take?
The 1979 MG MGB came from the factory on 185/70R14. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.
What size tires does a 1978 MG MGB take?
The 1978 MG MGB came from the factory on 185/70R14. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.