2007 BMW 525i — Sedan Sport Package
The 2007 BMW 525i Sedan Sport Package came from the factory equipped with 245/45R17 tires. If your vehicle has since been fitted with aftermarket or upsized wheels, your actual tire size may no longer match this factory spec — always confirm against your door placard before buying.
245/45R17
| Section width | 245 mm |
|---|---|
| Aspect ratio (sidewall height) | 45% (110.3 mm) |
| Rim diameter | 17" |
| Overall tire diameter | ~25.7" |
| Revolutions per mile | ~785 |
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What this size means for your BMW 525i
On the 2007 BMW 525i Sedan Sport Package, the factory 245/45R17 measures about 25.7″ in overall diameter with a 110.3 mm (4.3″) sidewall, and completes roughly 785 revolutions per mile. Its 45-series aspect ratio gives a low-profile sidewall tuned for sharper handling, common on sport trims and larger-wheel packages. In tire terms it is a passenger (P-metric / Euro-metric) size.
On a vehicle of this age, the BMW 525i 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.
Other 2007 BMW 525i trims
- Sedan Base Model 225/50R17 / 245/45R17
BMW 525i tire sizes by year
- 2006 BMW 525i 225/50R17 / 245/45R17
- 2005 BMW 525i 225/50R17 / 245/45R17
- 2004 BMW 525i 225/55R16 / 245/45R17
- 2003 BMW 525i 225/55R16 / 235/45R17
- 2002 BMW 525i 225/55R16 / 235/45R17
- 2001 BMW 525i 225/55R16 / 235/45R17
- 1995 BMW 525i 205/65R15
- 1994 BMW 525i 205/65R15
- 1993 BMW 525i 205/65R15
- 1992 BMW 525i 205/65R15
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.