295/35R21 vs 255/35R22 tire size
255/35R22 vs 295/35R21, diameter
-0.4% shorter
- Speedometer
- 60.2 mph
- At a true 60 mph
- Diameter
- 29.03 in
- Was 29.13 in
- Revs per mile
- 695
- Was 692
- 3% guideline
- Within
Car built for 295/35R21, now on 255/35R22.
295/35R21 and 255/35R22
| Measure | 295/35R21 | 255/35R22 | Difference |
|---|---|---|---|
| Width, mm | 295 | 255 | -40 |
| Sidewall, % of width | 35 | 35 | 0 |
| Rim, in | 21 | 22 | +1 |
| Section height, in | 4.06 | 3.51 | -0.55 |
| Diameter, in | 29.13 | 29.03 | -0.10 (-0.4%) |
| Circumference, in | 91.5 | 91.2 | -0.3 |
| Revs per mile | 692 | 695 | +2 (+0.4%) |
Fitting 255/35R22 instead of 295/35R21
Within the usual 3% diameter guideline.
- Needs 22 in wheels.
- Shorter sidewall: 0.6 in less.
Cars with 295/35R21
Cars with 255/35R22
What this cannot tell you
Diameter within 3% is a common shop guideline, not a maker spec.
Load index, offset and clearance are not in this data.
- Two or more sources agree
- One source
- Model-level or estimate
- Sources differ