235/45R21 vs 295/35R21 tire size
295/35R21 vs 235/45R21, diameter
-0.7% shorter
- Speedometer
- 60.4 mph
- At a true 60 mph
- Diameter
- 29.13 in
- Was 29.33 in
- Revs per mile
- 692
- Was 688
- 3% guideline
- Within
Car built for 235/45R21, now on 295/35R21.
235/45R21 and 295/35R21
| Measure | 235/45R21 | 295/35R21 | Difference |
|---|---|---|---|
| Width, mm | 235 | 295 | +60 |
| Sidewall, % of width | 45 | 35 | -10 |
| Rim, in | 21 | 21 | 0 |
| Section height, in | 4.16 | 4.06 | -0.10 |
| Diameter, in | 29.33 | 29.13 | -0.20 (-0.7%) |
| Circumference, in | 92.1 | 91.5 | -0.6 |
| Revs per mile | 688 | 692 | +5 (+0.7%) |
Fitting 295/35R21 instead of 235/45R21
Within the usual 3% diameter guideline.
- 60 mm wider. Check rubbing at full lock.
Cars with 235/45R21
Cars with 295/35R21
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