2003 Toyota MR2 — Spyder
The 2003 Toyota MR2 Spyder shipped with 2 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
185/55R15 (Front)
| Section width | 185 mm |
|---|---|
| Aspect ratio (sidewall height) | 55% (101.8 mm) |
| Rim diameter | 15" |
| Overall tire diameter | ~23" |
| Revolutions per mile | ~876 |
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215/45R16 (Rear)
| Section width | 215 mm |
|---|---|
| Aspect ratio (sidewall height) | 45% (96.8 mm) |
| Rim diameter | 16" |
| Overall tire diameter | ~23.6" |
| Revolutions per mile | ~854 |
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What this size means for your Toyota MR2
On the 2003 Toyota MR2 Spyder, the factory 185/55R15 measures about 23″ in overall diameter with a 101.8 mm (4″) sidewall, and completes roughly 876 revolutions per mile. Its 55-series aspect ratio gives a balanced everyday-passenger profile — enough sidewall to soak up road shock while keeping steering response crisp. In tire terms it is a passenger (P-metric / Euro-metric) size.
This is a staggered setup: the front axle runs 185/55R15 and the rear runs 215/45R16. The two sizes are not interchangeable, so order each for its correct axle and don't rotate front-to-rear.
On a vehicle of this age, the Toyota MR2 may have been refitted with a slightly different replacement size somewhere in its life, so check the current sidewall — not just the factory spec — before buying.
Toyota MR2 tire sizes by year
- 2005 Toyota MR2 185/55R15 (Front) / 215/45R16 (Rear)
- 2004 Toyota MR2 185/55R15 (Front) / 215/45R16 (Rear)
- 2002 Toyota MR2 185/55R15 (Front) / 205/50R15 (Rear)
- 2001 Toyota MR2 185/55R15 (Front) / 205/50R15 (Rear)
- 2000 Toyota MR2 185/55R15 (Front) / 205/50R15 (Rear)
- 1995 Toyota MR2 195/55R15 (Front) / 225/50R15 (Rear)
- 1994 Toyota MR2 195/55R15 (Front) / 225/50R15 (Rear)
- 1993 Toyota MR2 195/55R15 (Front) / 225/50R15 (Rear)
- 1992 Toyota MR2 195/60R14 (Front) / 205/60R14 (Rear)
- 1991 Toyota MR2 195/60R14 (Front) / 205/60R14 (Rear)
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.