175/70R13 vs 195/65R13
Going from one to the other changes the overall height by +1.5 %. That is inside the 3% band, so it fits and the speedometer stays close.
Side by side
| Measure | 175/70R13 | 195/65R13 | Change |
|---|---|---|---|
| Overall height | 22.6" | 23.0" | +1.5 % |
| Sidewall | 4.82" | 4.99" | +3.5 % |
| Section width | 175 mm | 195 mm | +11.4 % |
| Circumference | 71.1" | 72.2" | +1.5 % |
| Revs per mile | 891 | 878 | -1.5 % |
| Axle height | 11.32" | 11.49" | +4.3 mm |
| Approved rim width | 5–6" | 5.5–7" | overlap 5.5–6" |
Both are approved on a rim 5.5" to 6" wide. If yours is in that band, this is a tire change and nothing else.
What the speedometer will say
Calibrated for 175/70R13. Fit 195/65R13 and the needle stops telling the truth.
| Needle says | You are doing | Out by |
|---|---|---|
| 30 mph | 30.4 mph | +0.4 |
| 50 mph | 50.7 mph | +0.7 |
| 70 mph | 71.0 mph | +1.0 |
| 90 mph | 91.3 mph | +1.3 |
The odometer drifts with it. Ten thousand miles on the dial are really 10,148 on the road, so it under-counts by 148. At a true 70 mph the first turns 1039 times a minute, the second 1024.
What drivers reported
175/70R13 carries 56 complaints. Nobody has filed one naming 195/65R13.