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245-45-18 tires on Stock V6 CTS wheels... anybody done it?


pcassar

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Hey Guys!

I have a 2007 CTS V6 with the stock 18" wheel package. Stock tire size is 225-50-18 and performance all season tire support is severely lacking.

I notice through other posts on here, and through running some numbers that 245-45-18s are like .2" (.5cm) shorter and .4" (1cm) wider than the stock tires. There are many many more choices for tires in this size.

I know that the same year CTS-V uses the 245-45-18 as the stock tire size, but I don't know if the wheels are different from the regular CTS 18 inchers.

Has anybody run a 245-45-18 on the stock 18" wheel? Were there any fitment or rubbing issues?

Thanks!

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The 2007 CTS-Vs used unique wheels that were P32 Wheels, 18" x 8.5" (45.7 cm x 21.6 cm) 7-spoke, 6-lug painted aluminum

The 2007 CTS 18" wheels were 5-lug wheels, either

N87 Wheels, 18" (45.7 cm) 9-spoke, polished aluminum

1 - Included and only available with (Y43) 3.6L V6 18" Wheel Performance Package.

P40 Wheels, 18" (45.7 cm) Sport, 12-spoke, polished aluminum

1 - Included and only available with (R1Y) 3.6L V6 18" Wheel Sport Appearance Package.

(P40) 18" (45.7 cm) Sport, 12-spoke, polished aluminum wheels replace (N87) 18" (45.7

cm) 9-spoke, polished aluminum wheels when (R1Y) 3.6L V6 18" Wheel Sport

Appearance Package is ordered.

Looks like the width is 8" on the CTS wheels vs the 8.5" width on the V wheels.

Bruce

2016 Cadillac ATS-V gray/black

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The 2007 CTS-Vs used unique wheels that were P32 Wheels, 18" x 8.5" (45.7 cm x 21.6 cm) 7-spoke, 6-lug painted aluminum

The 2007 CTS 18" wheels were 5-lug wheels, either

N87 Wheels, 18" (45.7 cm) 9-spoke, polished aluminum

1 - Included and only available with (Y43) 3.6L V6 18" Wheel Performance Package.

P40 Wheels, 18" (45.7 cm) Sport, 12-spoke, polished aluminum

1 - Included and only available with (R1Y) 3.6L V6 18" Wheel Sport Appearance Package.

(P40) 18" (45.7 cm) Sport, 12-spoke, polished aluminum wheels replace (N87) 18" (45.7

cm) 9-spoke, polished aluminum wheels when (R1Y) 3.6L V6 18" Wheel Sport

Appearance Package is ordered.

Looks like the width is 8" on the CTS wheels vs the 8.5" width on the V wheels.

Thanks for the info!

Paul

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