How big of tires can I fit on my Tundra?
In most cases you can safely run about 33-inch tires on a Tundra without major modifications, and up to roughly 35-inch tires with a moderate lift. Going larger (37 inches or more) usually requires significant trimming, aftermarket fender work, and drivetrain considerations.
Tire fit on a Toyota Tundra depends on several variables including generation and trim, wheel size and offset, suspension setup, and how much you’re willing to trim or modify the body. This article breaks down the practical limits, what changes them, and recommended sizes for common scenarios so you can plan a setup that matches your goals—whether you want a mild all-terrain upgrade or a more capable off-road tire package.
What determines tire fit on the Tundra
Wheel size and offset
The diameter and width of your wheels set the ceiling for how large a tire can be without rubbing. A wheel with a negative offset pushes the tire outward, increasing the risk of contact with fenders, control arms, or pinch welds. Choosing the right offset and, if needed, spacers or aftermarket wheels can help maximize clearance.
Fender clearance and trimming
Stock fenders and liners limit the tire’s outer footprint. Leveling the front, rolling or trimming fender lips, and installing aftermarket flares are common ways to gain room for larger tires without rubbing at full suspension travel or steering lock.
Suspension and ride height
Leveling kits (around 2 inches) and suspension lifts (3 inches or more) directly impact clearance between the tire and the body. The more you raise the truck, the larger a tire you can fit—up to practical limits dictated by other components and rubbing points.
Brakes, axles, and drivetrain
Some bigger tires can contact brake calipers, CV joints, or axle housings, especially on tighter wheel wells or with wide tires. Aftermarket suspensions are often tuned to clear these components, but it’s a factor to confirm for your exact build.
Speedometer, gearing, and load
Changing tire diameter affects speedometer accuracy and gearing ratio. In some cases, you’ll want a speedometer recalibration or a re-gear to maintain performance and fuel economy, particularly with larger tires on a V8-powered Tundra.
Concluding thoughts: to determine what will fit, you must consider wheel size/offset, lift level, fender modification, and how much trimming you’re willing to perform. Always verify clearance at full steering lock and full suspension travel before committing to purchase.
Fitment guidelines by modification level
Before we list sizes, note that the numbers below reflect common real-world results across various Tundra generations and trims. Your exact fit will depend on your wheel choice, factory or aftermarket suspension, and whether you plan fender trimming or flare upgrades.
- No lift or leveling (stock ride height):
- Leveling kit (~2 inches) combined with factory wheels:
With the stock stance, you’re generally limited to the stock tire envelope. A few 275/65R18 or 275/70R18 style tires may clear under ideal conditions, but rubbing is common if you push beyond factory dimensions. Check clearance at full lock and consider a careful inspection for fender liner contact.
A common and reliable upgrade is to run around 33-inch tires, such as 33x10.5-12.5 on 18-inch wheels. This setup often fits with minimal trimming but can rub under full articulation, so you may need light fender liner or lip trimming and careful alignment checks.
Concluding paragraph for this section: leveling can unlock a noticeable increase in tire size without a full suspension overhaul, making 33-inch tires a practical and popular choice for many Tundra owners.
Practical tire sizes to consider by scenario
Below are typical targets that align with common goals: staying close to stock for daily driving, adding a modest off-road capability, or pursuing more aggressive off-road performance. Exact fit will depend on wheel width/offset and how much trimming you’re willing to do.
- Stock/near-stock (no lift):
- Leveling kit (about +2 inches):
- Moderate lift (3 inches or so):
- Heavy lift or aggressive off-road setup (4 inches or more):
Typical safe options hover around the factory footprint, with some owners fitting 275/65R18 or 275/70R18 on certain trims. These choices aim to preserve road manners and avoid rubbing without modifying the fenders.
A very common target for a more capable street-to-mild off-road setup is 33x10.5 or 33x12.5 tires on factory or lightly modified wheels. This balances performance, comfort, and clearance, with limited fender work required on many builds.
With a modest lift, many Tundra owners fit 34- to 35-inch tires (for example, ~34x12.5 or 35x12.5 variants on appropriate wheel sizes). Expect some trimming or flare work and a potential need for a tune or gear consideration for optimal performance.
At this level, 35-, 36-, or even 37-inch tires become feasible with aftermarket suspension, careful wheel selection, and substantial fender work. This often involves reworking brake clearance, steering components, and protection systems to maintain reliability and safety.
Concluding paragraph: for most Tundra owners, 33–35 inch tires cover a broad spectrum of needs, from daily driving with light trails to more serious off-road use. Larger tires demand more substantial modifications and planning.
What to check before buying tires
- Verify wheel and tire clearance at full steering lock and full suspension compression.
- Confirm that the tire width and offset won’t rub hoses, the frame, or control arms with your chosen wheel.
- Consider fender trimming or aftermarket flares if you plan to exceed stock clearance, and budget for possible alignment adjustments and speedometer recalibration.
- Check whether your planned setup affects warranty coverage or vehicle electronics, and consult a tire/wheel specialist if you’re unsure.
Concluding paragraph: doing the legwork on clearance, bracing, and alignment upfront can prevent rubbing, vibrations, or drivability issues after installation.
Summary
The practical takeaway is that most Tundra owners can safely run up to ~33 inches of overall tire diameter without major modifications, and up to ~35 inches with a modest lift and some fender work. Going beyond that generally requires more extensive upgrades to suspension, bodywork, brakes, and gearing. Always verify clearance through a controlled test with full steering lock and travel, and recalculate speedometer and gearing if you install larger tires.
If you want a quick rule of thumb: plan for 33-inch tires with a leveling kit, and consider 34–35 inch tires if you’re willing to install a proper lift and possibly trim fenders. For anything larger, consult your local tire shop or a Tundra-focused community to tailor the setup to your specific truck, wheels, and intended use.
How much bigger can you go on tire size?
When changing tire sizes, we recommend staying within 3% of the diameter/height of the original tire. Any more than this and you face the risk of brake failure. This tire calculator is for information purposes only and we do not guarantee fitment based on this calculator alone.
Will 285 65r18 fit a Toyota Tundra?
Yes they do! This 2020 Toyota Tundra is running Mayhem Rampage 18x9 wheels, Goodyear Wrangler Duratrac 285/65 tires with OEM Stock suspension, and needs No trimming and has No rubbing or scrubbing.
How big of tires can I fit on a stock Tundra?
Toyota Tundra OEM Tire Sizes
| Model Year | Original Factory Tundra Tire Sizes Sorted By Rim Size | |
|---|---|---|
| 2000-2006 | 245/70 R16 | 275/55 R18 |
| 2007-2013 | 285/70 R17 | 275/55 R20 |
| 2014-2021 | 285/70 R17 | 275/55 R20 |
| 2022-2025 | 245/75 R18 | 265/60 R20 |
Are 33 tires the same as 285?
285 70 R17 então isso significa que ele tem. 285. Mm de largura na banda de rodagem por 70% dessa medida de altura isso resulta num diâmetro. Total de 33 polegadas então é a altura do pneu é o
