A 235/40R19 tire is 26.4″ tall and 9.3″ wide, and fits a 19″ wheel. In inches it is written 26.4×9.3R19.
Heights published by BFGoodrich, General, Michelin and Toyo for all 24 tires in this size. Their published revolutions per mile work out to 25.6–25.7″ under load (below).
Real 235/40R19 tires measure 26.40–26.50″, against 26.40″ from the size code. They run both taller and shorter than the size code.
Published revs per mile (786–787) mean the tire rolls like a 25.6–25.7″ tire on the vehicle. Use this for speedometer calibration.
The lightest (Michelin Pilot Sport Cup 2 Connect, XL) is 4.7 lb lighter per corner than the heaviest (BFGoodrich Advantage Control, XL).
Sort by the spec you care about.
| Load | Revs/mi | Source | |||||
|---|---|---|---|---|---|---|---|
| Michelin Pilot Sport Cup 2 ConnectPerformance | XL · 96(Y) | 26.40 | 22.2 | 7.2 | 1,565 | 787 | Spec page |
| Michelin Pilot Sport Cup 2 ConnectPerformance | XL · 96(Y) | 26.40 | 22.2 | 7.2 | 1,565 | 787 | Spec page |
| General AltiMAX RT45Touring | XL · 96V | 26.40 | 23.0 | 11.0 | 1,565 | 787 | Spec page |
| BFGoodrich g-Force Phenom T/APerformance | XL · 96Y | 26.42 | 23.4 | 9.0 | 1,565 | 787 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 96(Y) | 26.40 | 23.6 | 9.0 | 1,565 | 787 | Spec page |
| Toyo Proxes Sport 2Performance | XL · 96Y | 26.40 | 24.0 | 9.1 | 1,565 | 786 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 96(Y) | 26.40 | 24.1 | 9.5 | 1,565 | 787 | Spec page |
| Toyo Extensa A/S IIAll-season | XL · 96V | 26.42 | 24.3 | 10.7 | 1,565 | 786 | Spec page |
| Michelin e.Primacy All SeasonTouring | XL · 96W | 26.40 | 24.4 | 8.5 | 1,565 | 787 | Spec page |
| Michelin Pilot Sport All-Season 4Performance | XL · 96Y | 26.50 | 24.4 | 10.0 | 1,565 | 787 | Spec page |
| General G-MAX AS07Performance | XL · 96W | 26.40 | 24.5 | 10.0 | 1,565 | 787 | Spec page |
| Michelin Pilot Alpin PA4Winter | SL · 92V | 26.40 | 25.0 | 10.5 | 1,389 | 787 | Spec page |
| Toyo Proxes G-Tour | XL · 96W | 26.40 | 25.1 | 10.8 | 1,565 | 786 | Spec page |
| Toyo Extensa HP IIPerformance | XL · 96W | 26.42 | 25.2 | 9.4 | 1,565 | 786 | Spec page |
| Michelin X-Ice SnowWinter | XL · 96H | 26.42 | 25.2 | 10.5 | 1,565 | 787 | Spec page |
| General AltiMAX Arctic XWinter | XL · 96T | 26.40 | 25.3 | 12.0 | 1,565 | 787 | Spec page |
| Michelin Primacy MXM4Touring | XL · 96V | 26.40 | 25.5 | 9.5 | 1,565 | 787 | Spec page |
| Michelin Defender2All-season | XL · 96V | 26.40 | 25.8 | 10.5 | 1,565 | 787 | Spec page |
| Michelin Primacy MXM4Touring | SL · 92V | 26.40 | 25.8 | 9.5 | 1,389 | 787 | Spec page |
| Toyo Celsius SportPerformance | XL · 96W | 26.42 | 25.8 | 9.7 | 1,565 | 786 | Spec page |
| Michelin CrossClimate2All-season | XL · 96V | 26.40 | 25.9 | 10.0 | 1,565 | 787 | Spec page |
| Toyo Proxes Sport A/SPerformance | XL · 96Y | 26.42 | 26.1 | 9.3 | 1,565 | 786 | Spec page |
| Michelin Primacy MXM4Touring | XL · 96V | 26.40 | 26.2 | 8.5 | 1,565 | 787 | Spec page |
| BFGoodrich Advantage ControlAll-season | XL · 96V | 26.42 | 26.9 | 10.5 | 1,565 | 787 | Spec page |
Close. The size code works out to 26.40″, and the 24 tires here publish 26.40–26.50″, so people call it a 26.
Differences in overall diameter, calculated from each size code.
A percentage, not a measurement: the sidewall is 40% as tall as the tire is wide, which is 94.0 mm or 3.70 inches.
Radial construction.
Mounts on a 19-inch wheel. Approved wheel widths run 8.0″ to 9.5″.
Each tire carries up to 1,565 lb (710 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 1,565 lb each and the standard-load tires up to 1,389 lb, as published.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 26.40 | 671 mm |
| Section width | 9.25 | 235 mm |
| Sidewall height | 3.70 | 94.0 mm |
| Circumference | 82.9 | 2,107 mm |
| Revolutions per mile (calculated, unloaded) | 763.9 | 475 per km |
| Revolutions per mile (published by manufacturers) | 786–787 | 488–489 per km |
| Approved wheel width | 8.0–9.5 | 203–241 mm |
26.40 inches tall, 9.25 inches wide, on a 19-inch wheel. Written in inches, that is roughly 26.4×9.3R19.
Between 22.2 lb and 26.9 lb for the 24 tires listed here. The lightest is the Michelin Pilot Sport Cup 2 Connect (XL); the heaviest is the BFGoodrich Advantage Control (XL).
Manufacturers approve 8.0–9.5″ wide wheels for this size.
Published figures run 786–787 revolutions per mile. The calculated figure is 763.9, but manufacturers measure the tire under load, where it rolls on a smaller radius.
0.10 inches taller on paper (26.40″ vs 26.30″), which raises the axle about 0.05″. Your speedometer will read about 0.4% slow.