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2021 Toyota Tundra Tire Fitment

3 factory tire sizes across trims — select yours below.

Trim fitment

Trim(s) OEM size
1794, Limited 265/60R20 Specs →
SR, SR5 265/70R18 Specs →
TRD Pro 285/65R18 Specs →
OEM size
265/60R20
Diameter
32.52″
Sidewall
6.26″
Revs / mile
620

About 2021 Toyota Tundra fitment

The 2021 Toyota Tundra 1794 ships from the factory with 265/60R20 tires, giving a 32.52″ overall diameter and 620 revs per mile. This is the reference size the factory speedometer, odometer, ABS, and TPMS were calibrated against, so any replacement tire should stay close to 32.52″ to preserve correct readings. This model year ships in multiple configurations with different OEM tire sizes (265/60R20, 265/70R18, 285/65R18), so confirm your exact trim badge before ordering. The smallest recommended upsize is 285/50R22 — a 2.15% diameter change — which keeps the speedometer inside factory tolerance while adding marginal ride height and sidewall compliance. The most aggressive option shown, 295/50R22, runs 3.37% taller and will likely need clearance checking on stock suspension. For a direct replacement, look for brands offering 265/60R20 in all-season, highway, or terrain-appropriate compounds — the OEM spec typically emphasizes fuel economy and tread life over grip, so aftermarket replacements often unlock better wet performance or off-road capability at similar cost. Before committing to an upsize, confirm wheel-well clearance at full steering lock and suspension compression, and verify the chosen size does not conflict with snow chains, tire-fit sensors, or any lift-kit hardware already installed.

Upsize options

Size Diameter Δ vs OEM
285/50R22 33.22″ +2.15% Details →
255/65R20 33.05″ +1.63% Details →
275/60R20 32.99″ +1.45% Details →
285/60R20 33.46″ +2.91% Details →
275/50R22 32.83″ +0.94% Details →
265/65R20 33.56″ +3.21% Details →
295/55R20 32.78″ +0.79% Details →
295/50R22 33.61″ +3.37% Details →

Check speedometer error before upsizing

Type to search · try 275/65R18 or "33" for inch aliases
Common upsizes from 265/60R20:
Don't know your stock size? Load it by vehicle:

265/60R20

Diameter
32.52″ / 826mm
Section Width
10.43
Sidewall
6.26″ / 159mm
Circumference
102.16
Revs/Mile
620
See tires in 265/60R20

285/50R22

Diameter
33.22″ / 843.8mm
Section Width
11.22
Sidewall
5.61″ / 142.5mm
Circumference
104.37
Revs/Mile
607
See tires in 285/50R22
265/60R20 · 32.52285/50R22 · 33.22

Speedometer & Diameter Impact

Different rim — new wheels required
Diameter Change
+2.15%
Sidewall Change
-0.65″
Revs/Mile Δ
-13
mph

At an indicated 60 mph, your actual speed is 61.29 mph (98.64 km/h). Your speedometer reads 2.15% low versus actual speed.

Speedometer impact if you upsize from 265/60R20

Toyota Tundra — other model years