Lucid Gravity tires
The Lucid Gravity leaves the factory on 265/45 R21 and 265/50 R20 depending on wheel size, and the 265/50 R20 111Y XL below is the one most owners are replacing. XL is not optional here; it is what the car was type approved on. It is staggered: a 265 section at the front and a 285 at the back, so the two can never be swapped across axles and the rear goes first. The Cadillac Lyriq takes the same size.
Every fitment
| Generation | Trim | Wheel | Tire size | Load index | Speed | Construction | Marking | Pressure |
|---|---|---|---|---|---|---|---|---|
| Current | Touring and Grand Touring (20in front, 21in rear) | 20/21in | 265/50 R20 front, 285/45 R21 rear | 111 | Y | XL | none | see plate |
| Current | Touring and Grand Touring (21in front, 22in rear) | 21/22in | 265/45 R21 front, 285/40 R22 rear | 108 | Y | 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 tire.
What changes on this car
The Gravity is staggered in diameter as well as width: a 20 inch front with a 21 inch rear as standard, or 21 front with 22 rear. Front and rear wheels cannot swap at all.
All four sizes are XL and Y-rated. On the standard set, the 265/50 R20 front carries 1,090kg and the 285/45 R21 rear carries 1,150kg, the most of any position on the car.
Michelin lists a third pairing for the Gravity, index 109 front and 110 rear, without a size attached. It is left out here until the size can be confirmed.
No tires listed against this fitment yet. Product specifications are published from each manufacturer's own data and that work is not finished for 265/50 R20. Match or exceed every figure in the table above and you cannot go far wrong.
Where these figures come from
- Michelin US vehicle fitment tool (2026 Touring, 265/50R20/XL 111Y front, 285/45R21/XL 113Y rear): https://www.michelinman.com/auto/browse-tires/by-vehicle/2026/lucid/gravity/touring/265---50R20---XL-111Y_285---45R21---XL-113Y
- Michelin US vehicle fitment tool (2026 Grand Touring, 265/50R20/XL 111Y front, 285/45R21/XL 113Y rear): https://www.michelinman.com/auto/browse-tires/by-vehicle/2026/lucid/gravity/grand-touring/265---50R20---XL-111Y_285---45R21---XL-113Y
- Michelin US vehicle fitment tool (2026 Touring, 265/45ZR21/XL 108Y front, 285/40ZR22/XL 110Y rear): https://www.michelinman.com/auto/browse-tires/by-vehicle/2026/lucid/gravity/touring/265---45ZR21---XL-108Y_285---40ZR22---XL-110Y
- Michelin US vehicle fitment tool (2026 Grand Touring, 265/45ZR21/XL 108Y front, 285/40ZR22/XL 110Y rear): https://www.michelinman.com/auto/browse-tires/by-vehicle/2026/lucid/gravity/grand-touring/265---45ZR21---XL-108Y_285---40ZR22---XL-110Y
- BFGoodrich US vehicle fitment tool (2026 Grand Touring, 265/50R20/XL 111Y front, 285/45R21/XL 113Y rear): https://www.bfgoodrichtires.com/auto/browse-tires/by-vehicle/2026/lucid/gravity/grand-touring/265---50R20---XL-111Y_285---45R21---XL-113Y
Every figure here comes from one tire maker's own fitment data, checked across different years or trims. That is a second look rather than a second opinion, so check the label on your door jamb before you buy.
Other cars on the same size
Common questions
- What size tires does the Lucid Gravity take?
- It runs 265/45 R21 and 265/50 R20. The exact fitment for your car is on On the driver's door jamb, on the B-pillar.
- Can I fit a cheaper tire to a Lucid Gravity?
- Only at 265/50 R20 111Y XL or better. That is the figure to hold: a tire below the load index, the speed rating or the construction class is not a cheaper one, it is the wrong one.