A 205/55R17 tire is 25.9″ tall and 8.1″ wide, and fits a 17″ wheel. In inches it is written 25.9×8.1R17.
Heights published by BFGoodrich, General, Michelin and Toyo for all 8 tires in this size. Their published revolutions per mile work out to 25.1″ under load (below).
Real 205/55R17 tires measure 25.90–25.91″, against 25.88″ from the size code. Every one runs taller than the size code.
Published revs per mile (802–803) mean the tire rolls like a 25.1″ tire on the vehicle. Use this for speedometer calibration.
The lightest (Michelin Primacy 3, SL) is 3.8 lb lighter per corner than the heaviest (BFGoodrich Advantage Control, XL).
Sort by the spec you care about.
| Load | Revs/mi | Source | |||||
|---|---|---|---|---|---|---|---|
| Michelin Primacy 3Performance | SL · 91W | 25.91 | 20.9 | 9.0 | 1,356 | 803 | Spec page |
| General AltiMAX RT45Touring | XL · 95V | 25.90 | 21.1 | 11.0 | 1,521 | 803 | Spec page |
| General AltiMAX Arctic XWinter | XL · 95T | 25.90 | 21.6 | 12.0 | 1,521 | 803 | Spec page |
| Michelin Pilot Sport PS2Performance | XL · 95Y | 25.90 | 22.6 | 9.5 | 1,521 | 803 | Spec page |
| Toyo Proxes G-Tour | XL · 95V | 25.90 | 23.1 | 9.1 | 1,521 | 802 | Spec page |
| Michelin CrossClimate2All-season | XL · 95V | 25.90 | 23.2 | 10.0 | 1,521 | 803 | Spec page |
| Michelin X-Ice SnowWinter | XL · 95T | 25.91 | 23.7 | 10.5 | 1,521 | 803 | Spec page |
| BFGoodrich Advantage ControlAll-season | XL · 95H | 25.91 | 24.7 | 11.5 | 1,521 | 803 | Spec page |
Yes. The size code works out to 25.88″, and the 8 tires here publish 25.90–25.91″, so people call it a 26.
Differences in overall diameter, calculated from each size code.
A percentage, not a measurement: the sidewall is 55% as tall as the tire is wide, which is 112.8 mm or 4.44 inches.
Radial construction.
Mounts on a 17-inch wheel. Approved wheel widths run 5.5″ to 7.5″.
Each tire carries up to 1,521 lb (690 kg) at its maximum pressure.
Rated for up to 149 mph sustained.
Printed after the size. In this size the XL tires carry up to 1,521 lb each and the standard-load tires up to 1,356 lb, as published.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 25.88 | 657 mm |
| Section width | 8.07 | 205 mm |
| Sidewall height | 4.44 | 112.8 mm |
| Circumference | 81.3 | 2,065 mm |
| Revolutions per mile (calculated, unloaded) | 779.4 | 484 per km |
| Revolutions per mile (published by manufacturers) | 802–803 | 498–499 per km |
| Approved wheel width | 5.5–7.5 | 140–191 mm |
25.88 inches tall, 8.07 inches wide, on a 17-inch wheel. Written in inches, that is roughly 25.9×8.1R17.
Between 20.9 lb and 24.7 lb for the 8 tires listed here. The lightest is the Michelin Primacy 3 (SL); the heaviest is the BFGoodrich Advantage Control (XL).
Manufacturers approve 5.5–7.5″ wide wheels for this size.
Published figures run 802–803 revolutions per mile. The calculated figure is 779.4, but manufacturers measure the tire under load, where it rolls on a smaller radius.
0.02 inches taller on paper (25.88″ vs 25.86″), which raises the axle about 0.01″. Your speedometer will read about 0.1% slow.