2006 Cadillac CTS — 2.8L Luxury Sport Package
The 2006 Cadillac CTS 2.8L Luxury Sport Package came from the factory equipped with 225/50R17 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.
225/50R17
| Section width | 225 mm |
|---|---|
| Aspect ratio (sidewall height) | 50% (112.5 mm) |
| Rim diameter | 17" |
| Overall tire diameter | ~25.9" |
| Revolutions per mile | ~780 |
Compare prices at:
What this size means for your Cadillac CTS
On the 2006 Cadillac CTS 2.8L Luxury Sport Package, the factory 225/50R17 measures about 25.9″ in overall diameter with a 112.5 mm (4.4″) sidewall, and completes roughly 780 revolutions per mile. Its 50-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.
On a vehicle of this age, the Cadillac CTS 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 2006 Cadillac CTS trims
- 2.8L Base Model 225/55R16 / 225/50R17
- 2.8L Luxury Package 225/55R16 / 225/50R17
- 2.8L Sport Package 225/50R17
- 3.6L 18 Inch Wheels 225/50R18
- 3.6L Base Model 225/55R16 / 225/50R17
- 3.6L Luxury Package 225/55R16 / 225/50R17
- 3.6L Luxury Sport Package 225/50R17
- 3.6L Sport Package 225/50R17
- V 245/45R18
Cadillac CTS tire sizes by year
- 2019 Cadillac CTS 245/45R17 / 255/35R19
- 2018 Cadillac CTS 245/45R17 / 245/40R18
- 2017 Cadillac CTS 245/45R17 / 245/40R18
- 2016 Cadillac CTS 245/45R17 / 245/40R18
- 2015 Cadillac CTS 245/45R17 / 245/40R18
- 2014 Cadillac CTS 235/50R18 (Front) / 265/45R18 (Rear) / 235/45R19 (Front) / 265/40R19 (Rear)
- 2013 Cadillac CTS 235/50R18 (Front) / 265/45R18 (Rear) / 235/45R19 (Front) / 265/40R19 (Rear)
- 2012 Cadillac CTS 235/50R18 (Front) / 265/45R18 (Rear) / 235/45R19 (Front) / 265/40R19 (Rear)
- 2011 Cadillac CTS 235/50R18 (Front) / 265/45R18 (Rear) / 235/45R19 (Front) / 265/40R19 (Rear)
- 2010 Cadillac CTS 235/55R17
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.