
$2,057.76 for 4 · On order, delivered in 2 business days
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265/45R21 reads off the tire sidewall: 265 mm of section width, a sidewall whose height is 45% of that width, and a 21 in mounting diameter.
Every price shown is the price of this exact size, and the dot says what is ready today.

$2,057.76 for 4 · On order, delivered in 2 business days
Prices are per tire, before sales tax. You send your request online; the final amount, payment and handover are then arranged directly with us.
These figures are derived from the three numbers, not entered by hand: it is the same arithmetic as the size equivalence calculator.
Usable mounting width is a trade rule of thumb, roughly 70 to 90% of section width. It is not a standard. The exact range is whatever the manufacturer publishes for that model.
Sizes whose overall diameter stays within 3% of this one. The ones we carry link to their own page. These are computed suggestions, not a guarantee of fit: the vehicle manual decides.
| Size | Overall diameter | Gap | In the catalogue |
|---|---|---|---|
| 265/45R21Original size | 771.9 mm | 0 %Identical diameter | — |
| 235/40R23 | 772.2 mm | +0.04 %Within tolerance | — |
| 265/40R22 | 770.8 mm | -0.14 %Within tolerance | — |
| 265/50R20 | 773 mm | +0.14 %Within tolerance | In the catalogue |
| 235/45R22 | 770.3 mm | -0.21 %Within tolerance | — |
| 295/45R20 | 773.5 mm | +0.21 %Within tolerance | — |
| 265/35R23 | 769.7 mm | -0.29 %Within tolerance | — |
| 265/55R19 | 774.1 mm | +0.29 %Within tolerance | — |
| 295/40R21 | 769.4 mm | -0.32 %Within tolerance | — |
| 235/50R21 | 768.4 mm | -0.45 %Within tolerance | In the catalogue |
| 285/50R19 | 767.6 mm | -0.56 %Within tolerance | — |
| 245/60R19 | 776.6 mm | +0.61 %Within tolerance | — |
| 275/35R23 | 776.7 mm | +0.62 %Within tolerance | — |
| 235/55R20 | 766.5 mm | -0.7 %Within tolerance | In the catalogue |
| 245/55R20 | 777.5 mm | +0.73 %Within tolerance | — |
| 295/50R19 | 777.6 mm | +0.74 %Within tolerance | — |
| 275/40R22 | 778.8 mm | +0.89 %Within tolerance | In the catalogue |
| 255/55R19 | 763.1 mm | -1.14 %Within tolerance | In the catalogue |
| 255/50R20 | 763 mm | -1.15 %Within tolerance | In the catalogue |
| 275/45R21 | 780.9 mm | +1.17 %Within tolerance | In the catalogue |
| 275/45R20 | 755.5 mm | -2.12 %For reference only | In the catalogue |
| 255/55R20 | 788.5 mm | +2.15 %For reference only | In the catalogue |
| 245/50R20 | 753 mm | -2.45 %For reference only | In the catalogue |
| 245/55R19 | 752.1 mm | -2.57 %For reference only | In the catalogue |
Every size, every brand and every season has its own page: the models offered, the technical sheet and the equivalents.