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987.1 Cayman S tire size- Will 235/45/18 Front and 265/45/18 Rear Fit? (981 stock)

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YOUR RESEARCH987.1 Cayman S tire size- Will 235/45/18 Front and 265/45/18 Rear Fit? (981 stock)

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Run bridgestone re71r 255/40r18

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Suggestion
I have no issue with running Bridgestone RE71R 255/40R18 on
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987.1 Cayman S tire size- Will 235/45/18 Front and 265/45/18 Rear Fit? (981 stock)

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Leading evidence: 'Run bridgestone re71r 255/40r18' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run bridgestone re71r 255/40r18' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Suggestion
using Tapatalk
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987.1 Cayman S tire size- Will 235/45/18 Front and 265/45/18 Rear Fit? (981 stock)

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Run bridgestone re71r 255/40r18

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Reported fixes: 0
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Suggestion
I have no issue with running Bridgestone RE71R 255/40R18 on
Original post Read captured discussion
987.1 Cayman S tire size- Will 235/45/18 Front and 265/45/18 Rear Fit? (981 stock)

Use tapatalk

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion
using Tapatalk
Original post Read captured discussion
987.1 Cayman S tire size- Will 235/45/18 Front and 265/45/18 Rear Fit? (981 stock)

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The reason is SCCA STR class allows 255 widths max on Mid engine cars, so I tried maximum on all wheels and it worked..
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Generation: 20261027T035758Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Hi all. As per above there are some great deals on 235/45/18 Front and 265/45/18 Rear winter wheels and tires in my area. Just wondering if these will fit a cayman 987.1 or if they are too large in diameter versus the stock 235/40/18 and 265/40/18. Thanks!

POST 2Original post

What tires specifically?

POST 3Original post

Hi there. i'm looking at Dunlops or Pirelli Sottozero. Thanks!

POST 4Original post

I have 245/40ZR18 on the front and 275/40ZR18 on the rear of my ‘07 S with PASM and 1/2” wider wheels. No issues what so ever. Sent from my iPhone using Tapatalk

POST 5Original post

I’m more concerned with the diameter of the wheel not the width since these have a larger sidewall (45 versus stock 40)

POST 6Original post

My car has PASM which lowers the car’s ride height by 10mm (.4”) vs non- PASM cars. If your car isn’t equipped with PASM , you will have .4” more clearance than me which will mean the net difference in diameter between my tires and the ones you’re considering is .2” Front and .3” Rear. This will means the radius difference will be .1” and.15” respectively. Mine are also wider so you may in fact have enough clearance. Sent from my iPhone using Tapatalk

POST 7Original post

I think you should have no problems as long as you pay attention to the offsets and actual tread widths. Different tire makes have small differences in actual tread widths. I have a 2007 987.1 Cayman base with GT3 lower control arms in the front and stock geometry top strut mounts. I do have MSC damper coil overs, but that does not change what will fit under the fenders. I have no issue with running Bridgestone RE71R 255/40R18 on OZ Alleggerita HLT 8.5 inch width wheels with 53mm offset on ALL 4 wheels. The reason is SCCA STR class allows 255 widths max on Mid engine cars, so I tried maximum on all wheels and it worked.. I did have to add 10mm spacers to the rear so that the rear matches the front in total track width. I do not have PASM and my car is very stiff, almost twice the spring rates of stock and big sway bars front and rear, so the car does ride flat level around corners. Good luck.

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