Toyota Mirai Tires

Toyota Mirai uses three tire sizes across its 2016 to 2026 production run. Models from 2016 through 2020 use 215/55R17 on 17-inch wheels. Models from 2021 through 2026 use 235/55R19 on 19-inch wheels, while 2021 through 2025 also list 245/45R20 on 20-inch wheels. All listed sizes are modern radial fitments rather than vintage numeric or bias-ply formats.

That means the correct Toyota Mirai tire depends first on model year and then on the wheel actually fitted to the car. If the car is a 2021 through 2025 Toyota Mirai, checking the wheel diameter is more important than assuming one size applies to every example from that year. The year listing is the best starting point, and the sidewall marking on the current tire or the wheel itself should match the replacement size exactly.

A 2021 Toyota Mirai has two listed tire sizes because that model year appears with two different wheel diameters. One fitment uses 235/55R19 on 19-inch wheels, and the other uses 245/45R20 on 20-inch wheels. The difference is not a change in tire construction, since both are radial sizes, but a wheel-diameter split within the same production year.

The practical takeaway is that a 2021 Toyota Mirai owner should not choose a tire by year alone. Measure the wheel, read the current sidewall, or check the factory tire information label on the car before replacing anything. That extra step prevents the most common error on later Toyota Mirai fitment, which is selecting a 19-inch tire for a 20-inch wheel or the reverse.

Toyota Mirai uses three rim diameters across the years covered here: 17-inch, 19-inch, and 20-inch. The 2016 through 2020 Toyota Mirai uses 17-inch wheels with 215/55R17 tires. Beginning in 2021, Toyota Mirai moves to larger-wheel fitments, with 235/55R19 for 19-inch wheels and 245/45R20 for 20-inch wheels through 2025, while 2026 lists only the 19-inch size.

Rim diameter is the single most important fitment check on Toyota Mirai because the tire cannot substitute across wheel sizes. Even when two sizes appear in the same year range, each one belongs to a different wheel diameter and must match the wheel exactly. If the car has aftermarket wheels or a previous owner changed the setup, the current hardware should be verified before selecting a replacement tire.

The correct Toyota Mirai tire size is confirmed by matching three things: the model year, the wheel diameter, and the size marking already fitted to the car. Early Toyota Mirai models from 2016 through 2020 use 215/55R17, while later models shift to 235/55R19 or 245/45R20 depending on wheel size. That year-and-wheel combination is the clearest way to separate the correct fitment.

Start with the year listing, then verify the wheel itself before making a final selection. On 2021 through 2025 Toyota Mirai models, that second step matters because both 19-inch and 20-inch applications appear in the same year range. If the car has replacement wheels, the sidewall on the current tire and the wheel diameter should agree with each other before any new tire is chosen.

Toyota Mirai tire offerings in this range include blackwall, redline, and RWL sidewall styles. Blackwall appears in both the 17-inch and 20-inch applications, while the 20-inch 245/45R20 size also includes redline and raised white letter options. Those style differences are specific to the available products and do not change the underlying size requirement for the car.

Most Toyota Mirai owners looking for a factory-like contemporary appearance will stay with blackwall, especially on a modern sedan where that finish is the most visually neutral choice. Redline and RWL options can change the character of the car more noticeably, so they are best treated as appearance-driven alternatives within the correct size. Sidewall style should be chosen after the fitment itself has been narrowed down correctly.

Toyota Mirai tires in the available range come from BFGoodrich, Nitto, and Pro-Trac. BFGoodrich appears in both 215/55R17 and 245/45R20, while Nitto and Pro-Trac appear in the 245/45R20 fitment. The current range therefore gives Toyota Mirai buyers more brand choice in the later 20-inch application than in the earlier 17-inch size.

Brand selection matters most after the correct size and wheel diameter are settled. A 2016 through 2020 Toyota Mirai owner is working within a narrower product set than a 2021 through 2025 owner using 20-inch wheels, so comparing available series and sidewall styles becomes part of the decision. Once the size is correct, buyers can choose among the available brands based on the look and performance character they prefer.

Toyota Mirai tires in this range include several distinct series: g-Force Comp 2 AS, g-Force Phenom T/A, g-Force Sport Comp 2, Nitto NT555 G2, and Street Pro III. All of them are radial designs, but they represent different modern performance-oriented product lines and appearance choices within the listed sizes. Street Pro III is the series tied to the redline and RWL 20-inch offerings, while the BFGoodrich and Nitto series stay within blackwall presentations here.

For a Toyota Mirai owner, those series differences matter only after the fitment is correct for the car’s wheel diameter. The real decision path is size first, then sidewall style, then series preference within that size. Because the 245/45R20 application has the widest spread of series choices, later Toyota Mirai owners on 20-inch wheels have more flexibility in tailoring the car’s appearance and tire character than owners of the 17-inch setup.

A stored Toyota Mirai should be kept in a cool, dry, dark space with the tires properly inflated and protected from prolonged sun exposure. Clean pavement is better than bare ground, and the car should be moved slightly from time to time if it sits for long periods. Modern radial tires still age from heat, ozone, and static loading even when the car is driven very little.

If a Toyota Mirai is part of a collection and sees only occasional use, tire care should be treated as part of the preservation routine rather than an afterthought. Checking inflation pressure regularly helps reduce flat spotting and sidewall stress during storage. A modern specialty car like Toyota Mirai benefits from the same careful storage habits that collector vehicles do, especially when low annual mileage can hide tire aging.

Tires on a Toyota Mirai should be inspected visually every month and more closely before any longer drive. The inspection should include tread wear, sidewall cuts or bulges, irregular shoulder wear, embedded debris, and pressure loss. Because Toyota Mirai can spend time parked between uses, condition checks matter even when tread depth still appears healthy.

A practical routine is to inspect a Toyota Mirai at the same time you check pressures, especially at seasonal temperature changes. Uneven wear can also point to alignment, suspension, or inflation issues that should be corrected before they shorten the life of the replacement tires. Frequent inspection is one of the simplest ways to keep a low-use modern car ready for dependable road service.

Toyota Mirai tires should be replaced when age, cracking, impact damage, or other structural concerns appear, even if the tread still looks usable. Low mileage does not prevent rubber from aging, and a car that is driven sparingly can still end up on old tires. Calendar age, storage conditions, and visible condition all matter just as much as tread depth on a modern radial tire.

Owners of a lightly used Toyota Mirai should read the date codes on the tires and have them evaluated regularly as part of normal service. Any sign of sidewall checking, recurring pressure loss, or damage from potholes or curb strikes is reason for closer review. Replacing aged tires before they look worn out is often the smarter approach on a specialty vehicle that may otherwise seem ready to drive at a glance.

The listed Toyota Mirai tire options are modern radial designs intended for normal road use when they are the correct size for the car’s wheel diameter and are in proper condition. Sizes in this range include 17-inch, 19-inch, and 20-inch applications, so the first safety issue is choosing the exact fitment that matches the wheel. A correct tire in good condition is essential to how Toyota Mirai rides, steers, and brakes.

Safety depends on more than the size printed on the sidewall. A Toyota Mirai should be driven only after tire pressure, wear condition, and any age-related concerns have been checked, especially if the car has been parked for extended periods. Public-road use is entirely reasonable with an appropriate tire, but choosing a 19-inch tire for a 20-inch wheel or vice versa is a basic fitment mistake that must be avoided.

Before driving a Toyota Mirai, check tire pressure, visible tread and sidewall condition, and confirm that all four tires match the intended size for the wheel setup on the car. On 2021 through 2025 Toyota Mirai models, that means verifying whether the car is on 19-inch or 20-inch wheels. Any sign of sidewall damage, uneven wear, or low pressure deserves attention before the car goes back on the road.

A short pre-drive inspection is especially worthwhile on a Toyota Mirai that is used intermittently. Even a modern car can develop flat spotting, lose pressure, or show age-related condition changes while sitting. Taking a few minutes to verify the tires before each drive helps prevent avoidable problems and gives the owner a better chance of catching fitment or maintenance issues early.

A Toyota Mirai should be driven at prudent legal road speeds that respect the condition, inflation, and rating of the tires actually fitted to the car. The available products in these sizes are modern radial tires, including ZR-designated sizes in the listings, which places Toyota Mirai in a very different category from antique or bias-ply collector cars. Even so, tire condition remains just as important as the nominal speed capability printed on the sidewall.

The right approach with Toyota Mirai is to think in terms of the whole tire’s age and condition, not just its category or letter code. A newer, properly maintained set in the correct size can be used in a normal modern-driving context, while an aged or damaged set should be treated much more cautiously. Sensible speed always starts with a careful condition check and proper inflation before the car leaves the garage.