If wet braking matters most
Graded A for wet grip, and nothing else that fits is graded higher. Graded C for rolling resistance. EPREL registration 2744391.
Kumho PS71
rear 255/45 R20 105Y XL, no front in this range
£143.19inc VATFull spec
Lexus RZ tyres
The Lexus RZ leaves the factory on 235/50 R20 and 235/60 R18 depending on wheel size, and the 235/60 R18 103H below is the one most owners are replacing. A standard load 103 rating is modest for an electric car and says something about where this one's kerb weight sits. It is staggered: a 235 section at the front and a 255 at the back, so the two can never be swapped across axles and the rear goes first. The Kia EV5 takes the same size.
Every fitment
| Generation | Trim | Wheel | Tyre size | Load index | Speed | Construction | Marking | Pressure |
|---|---|---|---|---|---|---|---|---|
| Current | RZ 300e and 350e FWD, 18in | 18in | 235/60 R18 | 103 | H | SL | none | see plate |
| Current | RZ 450e and 500e AWD, 18in | 18in | 235/60 R18 front, 255/55 R18 rear | 103 | H | SL | none | see plate |
| Current | AWD, 20in | 20in | 235/50 R20 front, 255/45 R20 rear | 104 | V | XL | none | see plate |
Your own placard is the authority. You will find it on the on the driver's door jamb, on the B-pillar. Where it disagrees with this page, it wins. Match or exceed the size, load index, speed rating and construction class it gives, and use its pressure figure rather than anything printed on the tyre.
What changes on this car
All-wheel-drive RZs are staggered on both wheel sizes, with a 255 mm rear against a 235 mm front, so a full set means two different tyres. The front-wheel-drive RZ 300e and 350e use a single 235/60 R18 all round.
On 20 inch wheels both axles are XL: 104V at the front and 105W at the rear, the rear carrying 925 kg. The 18 inch staggered set stays at standard load, with the front H rated in Britain and V rated in the US.
Michelin's UK selector also shows the staggered 20 inch set against the front-wheel-drive RZ, but the Lexus UK brochure lists a square 235/50 R20 for those cars, so no front-drive 20 inch fitment is given here.
Which one to buy
How these were chosen. Everything here already clears this vehicle's own load index, speed rating and construction class. Each heading is a question about use rather than a ranking. The whole method.
If range is what you care about
Graded B for rolling resistance, the best of anything here, and that is the figure that shows on the range display. Graded A for wet grip, and nothing else that fits is graded higher. EPREL registration 2422476.
Nexen N'FERA Sport
rear 255/45 R20 105W XL, no front in this range
£192.32inc VATFull spec
If you want the cabin quiet
Measured at 72 decibels. Graded A for wet grip, and nothing else that fits is graded higher. EPREL registration 2548644.
Michelin Pilot Sport EV
rear 255/45 R20 105W XL, no front in this range
£299.70inc VATFull spec
If it gets properly cold where you are
A winter tyre, so a second set rather than a replacement for what is on the car now. Graded D for wet grip. Graded B for rolling resistance, the best of anything here, and that is the figure that shows on the range display. EPREL registration 727673.
Nokian Hakkapeliitta R5 EV
rear 255/45 R20 105T XL, no front in this range
£147.99inc VATFull spec
Rated below the speed this vehicle left the factory at, which is permitted for a winter tyre and is why it carries a T or an R. The load index and the construction class still match. Do not exceed the tyre's own rating while it is fitted.
Everything that fits the 255/45 R20
Season
Order by
Ordering is by the registered label figure, not by anything we think of them.
summerExtra load
Kumho Tire · Manufacturer material, used by permission
Graded A for fuel efficiency in several of the sizes heavy electric cars use, which is a harder result on a two tonne car than it looks.
Built for EVsWinterExtra load
Nokian Tyres plc · Manufacturer material, used by permission
A studless winter tyre built for the weight and the rolling resistance demands of an electric car.
Rated below the speed this vehicle left the factory at, which is permitted for a winter tyre and is why it carries a T or an R. The load index and the construction class still match. Do not exceed the tyre's own rating while it is fitted.
summerExtra load
Nexen Tire Corporation · Manufacturer material, used by permission
A Korean-built summer tyre that turns up as original equipment more often than its profile suggests, graded A for fuel efficiency.
summerExtra load
Continental AG · Manufacturer material, used by permission
A high performance summer tyre available in the Y rated sizes that heavy, fast electric cars are specified with.
Built for EVsSummerExtra load
Manufacture Francaise des Pneumatiques Michelin · Manufacturer material, used by permission
_IMG_6622.jpg){kind=link}
A performance summer tyre built for heavy, fast electric cars, with an acoustic foam liner bonded inside the cavity.
Where these figures come from
- Lexus UK RZ brochure: 18in 235/60 (fr) and 255/55 (rr) R18 on RZ 450e, 235/60 R18 on RZ 300e; 20in AWD 235/50 (fr) and 255/45 (rr) R20: https://www.lexus.co.uk/content/dam/lexus/nmsc/united-kingdom/brochure/rz.pdf
- Michelin UK vehicle fitment tool (2024 RZ 300e, 235/60 R18 103H): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/lexus/rz/rz-300e/2024/ev-204-150-kw/235---60-R-18-103H
- Michelin UK vehicle fitment tool (2025 RZ 350e, 235/60 R18 103H): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/lexus/rz/rz-350e/2025/ev-227-167-kw/235---60-R-18-103H
- Michelin UK vehicle fitment tool (2023 RZ 450e, 235/60 R18 103H front, 255/55 R18 105V rear): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/lexus/rz/rz-450e/2023/ev-313-230-kw/235---60-R-18-103H_255---55-R-18-105V
- Michelin UK vehicle fitment tool (2025 RZ 500e, 235/60 R18 103H front, 255/55 R18 105V rear): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/lexus/rz/rz-500e/2025/ev-381-280-kw/235---60-R-18-103H_255---55-R-18-105V
- Michelin UK vehicle fitment tool (2024 RZ 450e, 235/50 R20 104V front, 255/45 R20 105W rear): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/lexus/rz/rz-450e/2024/ev-313-230-kw/235---50-R-20-104V_255---45-R-20-105W
- Michelin US vehicle fitment tool (2023 RZ450e Premium, 235/60R18 103V front, 255/55R18 105V rear): https://www.michelinman.com/auto/browse-tires/by-vehicle/2023/lexus/rz450e/premium/235---60R18-103V_255---55R18-105V
- Michelin US vehicle fitment tool (2025 RZ450e base, 235/60R18 103V front, 255/55R18 105V rear): https://www.michelinman.com/auto/browse-tires/by-vehicle/2025/lexus/rz450e/base/235---60R18-103V_255---55R18-105V
- Michelin US vehicle fitment tool (2024 RZ450e Luxury, 235/50R20 XL 104V front, 255/45R20 XL 105W rear): https://www.michelinman.com/auto/browse-tires/by-vehicle/2024/lexus/rz450e/luxury/235---50R20---XL-104V_255---45R20---XL-105W
- Michelin US vehicle fitment tool (2026 RZ550e F Sport, 235/50R20 XL 104V front, 255/45R20 XL 105W rear): https://www.michelinman.com/auto/browse-tires/by-vehicle/2026/lexus/rz550e/f-sport/235---50R20---XL-104V_255---45R20---XL-105W
Including the manufacturer's own published figure. Neither source is standing next to your vehicle, which is why the placard still wins.
Spotted something wrong? A correction to a fitment is the most useful thing you can send us and it goes to the front of the queue. Tell us.
Fit tyres for a living? Trade accounts get volume pricing on every tyre we list. Open an account.
Other cars on the same size
Common questions
- What size tyres does the Lexus RZ take?
- It runs 235/50 R20 and 235/60 R18. The exact fitment for your car is on On the driver's door jamb, on the B-pillar.
- Can I fit a cheaper tyre to a Lexus RZ?
- Only at 235/60 R18 103H or better. That is the figure to hold: a tyre below the load index, the speed rating or the construction class is not a cheaper one, it is the wrong one.