2023 TOYOTA 4RUNNER TRD OFF-ROAD · N280 · VERIFIED ON SEP 4, 2026
Factory size is 265/70R17 (803 mm rolling diameter). 6 alternates stay within 3 % of that diameter: 275/70R17, 255/75R17, 265/65R18, 275/65R18, 265/60R20 and more. Anything beyond 3 % changes the speedometer reading and the gearing.
Factory size is 265/70R17 (803 mm rolling diameter).
| SIZE | DIAMETER | VS OE | VERDICT |
|---|---|---|---|
| 265/70R17 | 803 mm (31.6") | 0 % | within 3 % |
| 275/70R17 | 817 mm (32.2") | +1.7 % | within 3 % |
| 285/70R17 | 831 mm (32.7") | +3.5 % | over 3 % — speedo error |
| 255/75R17 | 814 mm (32.1") | +1.4 % | within 3 % |
| 265/65R18 | 802 mm (31.6") | -0.1 % | within 3 % |
| 275/65R18 | 815 mm (32.1") | +1.5 % | within 3 % |
| 265/60R20 | 826 mm (32.5") | +2.9 % | within 3 % |
| 275/60R20 | 838 mm (33") | +4.4 % | over 3 % — speedo error |
| 245/60R20 | 802 mm (31.6") | -0.1 % | within 3 % |
Fitment is computed from published vehicle data and the retailer's listed sizes (catalog 2026-09-04-tirerack-d, verified on Sep 4, 2026). Prices are list prices on that date. Verify with your installer before you buy. Buy links may be affiliate links.