305/35R24 vs 295/35R24
Going from one to the other changes the overall height by -0.9 %. That is inside the 3% band, so it fits and the speedometer stays close.
Side by side
| Measure | 305/35R24 | 295/35R24 | Change |
|---|---|---|---|
| Overall height | 32.4" | 32.1" | -0.9 % |
| Sidewall | 4.20" | 4.06" | -3.3 % |
| Section width | 305 mm | 295 mm | -3.3 % |
| Circumference | 101.8" | 100.9" | -0.9 % |
| Revs per mile | 622 | 628 | +0.9 % |
| Axle height | 16.20" | 16.06" | -3.5 mm |
| Approved rim width | 8.5–11" | 8.5–11" | overlap 8.5–11" |
Both are approved on a rim 8.5" to 11" wide. If yours is in that band, this is a tire change and nothing else.
What the speedometer will say
Calibrated for 305/35R24. Fit 295/35R24 and the needle stops telling the truth.
| Needle says | You are doing | Out by |
|---|---|---|
| 30 mph | 29.7 mph | -0.3 |
| 50 mph | 49.6 mph | -0.4 |
| 70 mph | 69.4 mph | -0.6 |
| 90 mph | 89.2 mph | -0.8 |
The odometer drifts with it. Ten thousand miles on the dial are really 9,915 on the road, so it over-counts by 85. At a true 70 mph the first turns 726 times a minute, the second 732.
What drivers reported
305/35R24 carries 1 complaints. Nobody has filed one naming 295/35R24.