275/45R22 vs 295/40R22
Going from one to the other changes the overall height by -1.4 %. That is inside the 3% band, so it fits and the speedometer stays close.
Side by side
| Measure | 275/45R22 | 295/40R22 | Change |
|---|---|---|---|
| Overall height | 31.7" | 31.3" | -1.4 % |
| Sidewall | 4.87" | 4.65" | -4.6 % |
| Section width | 275 mm | 295 mm | +7.3 % |
| Circumference | 99.7" | 98.3" | -1.4 % |
| Revs per mile | 635 | 645 | +1.4 % |
| Axle height | 15.87" | 15.65" | -5.8 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 275/45R22. Fit 295/40R22 and the needle stops telling the truth.
| Needle says | You are doing | Out by |
|---|---|---|
| 30 mph | 29.6 mph | -0.4 |
| 50 mph | 49.3 mph | -0.7 |
| 70 mph | 69.0 mph | -1.0 |
| 90 mph | 88.7 mph | -1.3 |
The odometer drifts with it. Ten thousand miles on the dial are really 9,857 on the road, so it over-counts by 143. At a true 70 mph the first turns 741 times a minute, the second 752.
What drivers reported
275/45R22 carries 1 complaints. Nobody has filed one naming 295/40R22.