275/75R22 vs 295/65R22
Going from one to the other changes the overall height by -3.0 %. That is inside the 3% band, so it fits and the speedometer stays close.
Side by side
| Measure | 275/75R22 | 295/65R22 | Change |
|---|---|---|---|
| Overall height | 38.2" | 37.1" | -3.0 % |
| Sidewall | 8.12" | 7.55" | -7.0 % |
| Section width | 275 mm | 295 mm | +7.3 % |
| Circumference | 120.1" | 116.5" | -3.0 % |
| Revs per mile | 527 | 544 | +3.0 % |
| Axle height | 19.12" | 18.55" | -14.5 mm |
| Approved rim width | 7.5–10" | 8.5–11" | overlap 8.5–10" |
Both are approved on a rim 8.5" to 10" wide. If yours is in that band, this is a tire change and nothing else.
What the speedometer will say
Calibrated for 275/75R22. Fit 295/65R22 and the needle stops telling the truth.
| Needle says | You are doing | Out by |
|---|---|---|
| 30 mph | 29.1 mph | -0.9 |
| 50 mph | 48.5 mph | -1.5 |
| 70 mph | 67.9 mph | -2.1 |
| 90 mph | 87.3 mph | -2.7 |
The odometer drifts with it. Ten thousand miles on the dial are really 9,701 on the road, so it over-counts by 299. At a true 70 mph the first turns 615 times a minute, the second 634.