2013 Cadillac CTS — V
The 2013 Cadillac CTS V 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.
255/40R19 (Front)
| Section width | 255 mm |
|---|---|
| Aspect ratio (sidewall height) | 40% (102 mm) |
| Rim diameter | 19" |
| Overall tire diameter | ~27" |
| Revolutions per mile | ~746 |
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285/35R19 (Rear)
| Section width | 285 mm |
|---|---|
| Aspect ratio (sidewall height) | 35% (99.8 mm) |
| Rim diameter | 19" |
| Overall tire diameter | ~26.9" |
| Revolutions per mile | ~751 |
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What this size means for your Cadillac CTS
On the 2013 Cadillac CTS V, the factory 255/40R19 measures about 27″ in overall diameter with a 102 mm (4″) sidewall, and completes roughly 746 revolutions per mile. Its 40-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.
This is a staggered setup: the front axle runs 255/40R19 and the rear runs 285/35R19. The two sizes are not interchangeable, so order each for its correct axle and don't rotate front-to-rear.
Other 2013 Cadillac CTS trims
- Coupe Performance 235/50R18 (Front) / 265/45R18 (Rear) / 235/45R19 (Front) / 265/40R19 (Rear)
- Coupe Premium 235/50R18 (Front) / 265/45R18 (Rear) / 235/45R19 (Front) / 265/40R19 (Rear)
- Coupe Standard 235/50R18 (Front) / 265/45R18 (Rear) / 235/45R19 (Front) / 265/40R19 (Rear)
- Sedan 3.0L Luxury 235/55R17
- Sedan 3.0L Standard 235/55R17
- Sedan 3.6L Performance 235/50R18 / 245/45R19
- Sedan 3.6L Premium 235/50R18 / 245/45R19
- Sport Wagon 3.0L Base 235/55R17
- Sport Wagon 3.0L Luxury 235/55R17
- Sport Wagon 3.0L Performance 235/50R18
- Sport Wagon 3.6L Performance 235/50R18 / 245/45R19
- Sport Wagon 3.6L Premium 235/50R18 / 245/45R19
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)
- 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
- 2009 Cadillac CTS 235/55R17 / 235/50R18
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.