Vintage Tire Conversion

Tools /

When selecting a modern tire size for a classic car, it is important to compare the outside diameter and tread footprint of the original tires against potential replacements. This will ensure that any variation in tire diameter or tread footprint does not affect the speedometer accuracy or the vehicle's aesthetic. It is always best to replace with reproduction vintage tires, as these offer 100% accuracy.

Pre-1964

1965-72

80 series metric

Alpha Num. 78 series

Metric 75 series

Metric 70 series

5.90-13

6.40-13

7.25-13

5.90-14

6.50-14

7.00-14

7.50-14

8.00-14

8.50-14

5.90-15

6.50-15

6.40-15

6.70-15

7.10-15

7.60-15

8.00-15

8.20-15

600-13

650-13

700-13

645-14

695-14

735-14

775-14

825-14

855-14

600-15

685-15

735-15

775-15

825-15

855-15

885-15

900-15

165-13

175-13

185-13

155-14

175-14

185-14

195-14

205-14

215-14

165-15

155-15

185-15

195-15

205-15

215-15

230-15

235-15

A78-13

B78-13

D78-13

B78-14

C78-14

E78-14

F78-14

G78-14

H78-14

A78-15

C78-15

E78-15

F78-15

G78-15

H78-15

J78-15

L78-15

165/75R13

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

175/75R13

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (24.4)"

185/75R13

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

175/75R14

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

185/75R14

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

195/75R14

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

205/75R14

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

215/75R14

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

225/75R14

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

165/75R15

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

175/75R15

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

195/15R33

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

205/75R15

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

215/75R15

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

225/75R15

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

225/75R15

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

235/75R15

O.D. xxx mm (xx.x)"

(-0.8%)

Width xxx mm (xx.x)"

175/70R13

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

185/70R13

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

205/70R13

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

185/70R14

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

195/70R14

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

205/70R14

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

215/70R14

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

225/70R14

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

235/70R14

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

175/70R15

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

185/70R15

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

205/70R15

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

215/70R15

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

225/70R15

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

235/70R15

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

235/70R15

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"

255/70R15

O.D. xxx mm (xx.x)"

(+0.1%)

Width xxx mm (xx.x)"