Highway / All-Season
Best for quiet daily, wet roads, long treadlife.
4th gen Tacoma · 2026
2026 Tacoma SR5 tire size.
The factory tire and wheel package for the 2026 Toyota Tacoma SR5 midsize pickup, the biggest tire it fits at each lift height, and upgrade sizes worked through.
Factory tire size
The 2026 Toyota Tacoma SR5 came from the factory with 245/70R17 tires on 17-in styled alloy wheels.
- On the 2026 SR5, 245/70R17 measures 30.5 in tall and 9.6 in wide, with a 6.8 in sidewall and 661 revolutions per mile.
- The 2026 SR5 is listed as standard on all listed configurations, with the tire recorded as all-season.
- Modeled estimate: a stock-height 4th gen Tacoma like the 2026 SR5 tops out near 285/70R17 (33s) on factory offset. On its factory 17-inch wheel, the tallest size our reconciled rules publish at that height is 285/70R17 (32.7 in), rated for minor changes.
Stock size and dimensions
all-season on 17-in styled alloy
What 245/70R17 measures — diameter, width, sidewall, and the other Tacoma trims that ship it.
- Diameter
- 30.50 in
- Width
- 9.65 in
- Sidewall
- 6.75 in
- Revs / mile
- 661
Source for the 2026 Tacoma SR5: Toyota.com 2026 Tacoma current specs, Toyota 2026 Tacoma Owner's Manual tire and wheel specs, and Toyota 2026 Tacoma pressroom release.
What size tires does a 2026 Tacoma SR5 have, and what is the biggest that fits?
A 2026 Toyota Tacoma SR5 leaves the factory on 245/70R17 tires, 30.5 in tall, mounted on 17-in styled alloy wheels. Without a lift, the tallest size our reconciled fitment rules publish for this truck's 17-inch wheel is 285/70R17 at 32.7 in, rated for minor changes; with a leveling kit the tallest is 285/75R17 at 33.8 in, rated for trim as needed. The table below runs the 2026 Tacoma SR5 through every lift height our 4th gen Tacoma model covers, as a midsize pickup on factory-style offset — lower-offset wheels or spacers move each row up the work ladder.
| Spec | 2026 SR5 |
|---|---|
| Stock tire size | 245/70R17 |
| Overall diameter | 30.5 in |
| Section width | 9.6 in |
| Sidewall height | 6.8 in |
| Revolutions per mile | 661 |
| Wheel | 17-in styled alloy |
| Factory wheel offset | +55 to +60 mm on a 17-18x7.5 wheel (approximate factory value) |
| Tire type | all-season |
| Availability | standard on all listed configurations |
| Setup | Tallest size on the factory 17-inch wheel | Change from 245/70R17 | Clearance work our per-size rules add | Modeled 4th gen ceiling (any wheel) and the work it lists |
|---|---|---|---|---|
| Stock height | 285/70R17 (32.7 in) | +2.20 in (+7.23%) | Minor changes | 285/70R17 (32.7 in); remove mud flaps |
| Leveling kit (1-2 in) | 285/75R17 (33.8 in) | +3.33 in (+10.91%) | Trim as needed | 285/75R17 (34.0 in); crash-plate removal (2 bolts, reversible) and light fender-liner trim at full lock |
| 3 in suspension lift | 35x12.5R17 (35.0 in) | +4.50 in (+14.74%) | Major clearance | 35x12.50R17 (35.0 in); crash-plate removal, forward-caster alignment, and minor plastic trim |
| 4-6 in lift | 35x12.5R17 (35.0 in), same as the row above | +4.50 in (+14.74%) | Major clearance | 37x12.50R17 (37.0 in); fender-well cutting and bumper trimming |
Upgrade sizes for a 2026 Tacoma SR5, and what each needs
Three steps up from the 2026 Tacoma SR5's 245/70R17, all on its factory 17-inch wheel: 265/70R17, a mild upgrade that clears at stock height; 285/70R17, a balanced 33 that clears at stock height with minor changes; and 255/80R17, a trail fit that needs a leveling kit (1-2 in) with minor changes. The speedometer column assumes the truck is still calibrated for the factory tire, and every fit tier is the stricter of our two fitment sources — a modeled estimate for this truck, not an install we measured.
| Size | Diameter | Change from 245/70R17 | True speed when the speedometer reads 60 mph | Fit tier (stricter source) |
|---|---|---|---|---|
| 265/70R17 | 31.6 in | +1.10 in (+3.61%) | 62.2 mph | Stock height |
| 285/70R17 | 32.7 in | +2.20 in (+7.23%) | 64.3 mph | Stock height, minor changes |
| 255/80R17 | 33.1 in | +2.56 in (+8.39%) | 65.0 mph | Leveling kit (1-2 in), minor changes |
Worked example: will 285/70R17 fit a 2026 Tacoma SR5?
Going from the 2026 Tacoma SR5's 245/70R17 to 285/70R17: the new tire is 32.7 in tall against 30.5 in, a +7.23% change in diameter, and 1.6 in wider. With the speedometer still calibrated for the factory tire, an indicated 60 mph is really about 64.3 mph and an indicated 70 about 75.1 mph. On fit, 285/70R17 clears a stock-height 4th gen Tacoma in both of our sources, rated for minor changes. It is a modeled estimate, not a measured install — confirm the exact tire model's moulded diameter and your wheel offset before ordering.
| Measurement | 245/70R17 | 285/70R17 | Change |
|---|---|---|---|
| Overall diameter | 30.5 in | 32.7 in | +2.20 in (+7.23%) |
| Section width | 9.6 in | 11.2 in | +1.57 in |
| Sidewall height | 6.8 in | 7.9 in | +1.10 in |
| Revolutions per mile | 661 | 617 | -45 |
| True speed at an indicated 60 mph | 60.0 mph | 64.3 mph | +4.34 mph |
What 245/70R17 measures on a 2026 Tacoma SR5
245/70R17 is 245 mm wide at a 70 percent sidewall ratio on a 17-inch wheel. Through standard tire math that is 30.5 in of overall diameter, 9.6 in of section width, a 6.8 in sidewall, and about 661 revolutions per mile — the figures behind the 2026 SR5's speedometer calibration. That package is standard on all listed configurations, riding 17-in styled alloy wheels.
245/70R17 is not exclusive to the SR5 in 2026: SR runs it too. Wheel finish, package content, and drivetrain separate those trims rather than tire size, so a tire that fits one fits the others.
Bigger tires on a 2026 Tacoma SR5
Staying on the factory 17-inch wheel of a 2026 SR5, 2 sizes in our candidate set clear at stock height with no lift and no clearance work, and inside the modeled stock ceiling of 32.7 in: 265/65R17 at 30.6 in and 265/70R17 at 31.6 in. Set against the 2026 SR5's 245/70R17, the closest of them comes out 0.1 in taller and 0.8 in wider. Stock-like 17-inch size for earlier TRD Sport-style setups.
Past that, the 17-inch sizes our set offers a 2026 SR5 need suspension or clearance work: 275/70R17 (32.2 in) clears at stock height but is rated for minor changes, 285/70R17 (32.7 in) clears at stock height but is rated for minor changes, and 33x10.5R17 (33.0 in) sits behind a leveling kit (1-2 in) with minor changes. Those tiers come from our fitment rule-set, not a truck we measured; lower-offset wheels push each one harder into the fender.
Add a leveling kit and our generation fitment matrix estimates a 4th gen Tacoma at 285/75R17 (skinny 34s, about 34.0 in) — 3.5 in taller than the 2026 SR5's 245/70R17. Clearance work it lists: Crash-plate removal (2 bolts, reversible) and Light fender-liner trim at full lock; gearing flagged at 4.88 if sluggish. Crash-plate removal replaces the permanent 3rd-gen cab mount chop. These are modeled estimates, not measured installs: offset, alignment, and the tire's real moulded size all move the answer.
Where the SR5 sits in the 2026 Tacoma lineup
Sorted by factory tire diameter, the 2026 Tacoma trims we cover run from 245/70R17 at 30.5 in (SR and SR5) up to 265/70R18 at 32.6 in (TRD Off-Road i-FORCE MAX, Trailhunter, and TRD Pro). The SR5's 245/70R17 is 1st of the 4 distinct sizes in that spread: 7 trims above it run a taller factory tire and nothing runs shorter.
Top-ranked 245/70R17 tires for a 2026 Tacoma SR5
Our tire dataset scores 14 models available in 245/70R17, the size the 2026 Tacoma SR5 runs from the factory on all-season. Below are the 3 best-ranked highway / all-season models in that size, plus mild all-terrain pick Destination A/T2 as a deliberate contrast — it scores differently because it is built for a different job.
Highway / All-Season
Best for quiet daily, wet roads, long treadlife.
Toyo Open Country H/T II
6.7/10Highway / All-Season
Best for quiet daily, wet roads, long treadlife.
Mild All-Terrain
Best for quiet daily, light trail, snow.
Scores are a 0-10 editorial synthesis of published reviews, manufacturer specifications, and retailer fitment data — not tires we tested ourselves. Availability in 245/70R17 for the 2026 SR5 comes from that dataset's own size catalog, and the shortlist follows the dataset's editorial rank — the 0-10 figure beside each pick is the blended score, one input to that rank rather than the thing it sorts on, so a model further down the rank can carry a higher number. How we source and score.
2026 Tacoma SR5 tire questions
Both of our fitment sources agree for the 2026 SR5: 285/70R17 at 32.7 in clears at factory height on the factory wheel with minor changes, inside the modeled stock ceiling of 285/70R17 (33s, about 32.7 in). The big 4th-gen win: a true 33 (285/70R17) clears at stock height with only the mud flaps off. Taller 33s like 275/70R18 are a leveling-kit size. It is a modeled estimate rather than an install we measured, and lower-offset wheels or spacers can undo it.
Our data lists the 2026 SR5 on 17-in styled alloy — a 17-inch wheel. Across the whole 2026 range we cover 17-inch and 18-inch wheels, so wheel diameter is one of the things that changes between trims. Keeping the factory diameter keeps the sidewall the truck was tuned for, and it keeps the tire choices in our size data open to you.
On a 2026 SR5, 245/70R17 works out to 30.5 in of overall diameter and 9.6 in of section width, on a 17-inch wheel with a 6.8 in sidewall. The math is the standard one: 245 mm of width at a 70 percent ratio gives the sidewall, and diameter is the 17-inch rim plus twice that sidewall. At that size the tire turns about 661 revolutions per mile.
On the 2026 SR5's factory wheel, 265/65R17 is the nearest step up in our candidate set at 30.6 in — stock-like 17-inch size for earlier TRD Sport-style setups. Our rules rate its fitment risk low from stock height on factory offset, and it clears at stock height with no clearance work, inside the modeled ceiling of 32.7 in. Confirm the mounted dimensions and the door-placard load rating before ordering.
On the 2026 SR5's factory 17-inch wheel, the tallest size our reconciled fitment rules publish at stock height is 285/70R17 at 32.7 in, rated for minor changes. The 4th gen Tacoma matrix's own stock ceiling, on any wheel, is 285/70R17 (33s, about 32.7 in). A leveling kit raises that to 285/75R17 at 33.8 in, rated for trim as needed. These are modeled estimates for a midsize pickup on factory-style offset, not measured installs; lower-offset wheels and spacers move every answer toward more work.