235/80R17 vs 265/70R17 tire size
265/70R17 vs 235/80R17, diameter
-0.6% shorter
- Speedometer
- 60.4 mph
- At a true 60 mph
- Diameter
- 31.61 in
- Was 31.80 in
- Revs per mile
- 638
- Was 634
- 3% guideline
- Within
Car built for 235/80R17, now on 265/70R17.
235/80R17 and 265/70R17
| Measure | 235/80R17 | 265/70R17 | Difference |
|---|---|---|---|
| Width, mm | 235 | 265 | +30 |
| Sidewall, % of width | 80 | 70 | -10 |
| Rim, in | 17 | 17 | 0 |
| Section height, in | 7.40 | 7.30 | -0.10 |
| Diameter, in | 31.80 | 31.61 | -0.20 (-0.6%) |
| Circumference, in | 99.9 | 99.3 | -0.6 |
| Revs per mile | 634 | 638 | +4 (+0.6%) |
Fitting 265/70R17 instead of 235/80R17
Within the usual 3% diameter guideline.
- 30 mm wider. Check rubbing at full lock.
Cars with 265/70R17
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