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YOUR RESEARCHRear tire size? 225/45 R17 or 255/40 R17 which one for comfort? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Run 225/45 as winter tires as well
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Yes, you are right, see my second post.I run the 225/45 as winter tires as well.
Rear tire size? 225/45 R17 or 255/40 R17 which one for comfort? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Recommend )
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Suggestion · Original poster
I'll go with 255-40 but it is odd that the 225/45 R17 is clearly indicated on a Porsche sticker inside the Frunk (the one where the recommended tire pressure are recommended).
Rear tire size? 225/45 R17 or 255/40 R17 which one for comfort? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Run 225/45 as winter tires as well' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend )' (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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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion · Original poster
I'll go with 255-40 but it is odd that the 225/45 R17 is clearly indicated on a Porsche sticker inside the Frunk (the one where the recommended tire pressure are recommended).
Rear tire size? 225/45 R17 or 255/40 R17 which one for comfort? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Recommend tire pressure are
Suggestion or failed attempt
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Unsuccessful attempts
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Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I'll go with 255-40 but it is odd that the 225/45 R17 is clearly indicated on a Porsche sticker inside the Frunk (the one where the recommended tire pressure are recommended).
Rear tire size? 225/45 R17 or 255/40 R17 which one for comfort? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace rim size either
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Rear tire size? 225/45 R17 or 255/40 R17 which one for comfort? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use original porsche rims
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Rear tire size? 225/45 R17 or 255/40 R17 which one for comfort? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (5)
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Recommend )
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I'll go with 255-40 but it is odd that the 225/45 R17 is clearly indicated on a Porsche sticker inside the Frunk (the one where the recommended tire pressure are recommended).
Rear tire size? 225/45 R17 or 255/40 R17 which one for comfort? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Recommend tire pressure are
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I'll go with 255-40 but it is odd that the 225/45 R17 is clearly indicated on a Porsche sticker inside the Frunk (the one where the recommended tire pressure are recommended).
Rear tire size? 225/45 R17 or 255/40 R17 which one for comfort? - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 1 discussions
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1 acknowledgements have no verified action link; they do not establish a repair result.
Hi all
I need your collective wisdom here....
I have a 1999 base and the
current
rear tires need replacing and they are
255/40
R17 tires (summer tires).
Yet I see on the tag in the frunk that it can also take
225/45
R17.
This is a weekend car my 60 year old body likes to take it easy over the summer: I don't race nor speed. I am not looking to change rim size either. I am looking for
comfort
. What size would be best? 225/45 R17 or 255/40 R17 tires for this type of driving in the summer?
Thank you!
Icecube
Thanks!
I'll go with 255-40 but it is odd that the 225/45 R17 is clearly indicated on a Porsche sticker inside the Frunk (the one where the recommended tire pressure are recommended).
Cheers!
You don't mention what brand you're currently using. Brands make a huge difference in ride. Even within brands can matter too. For example, the Mich PS2 (amazed they still sell these) has a stiff ride while the Mich 4S does not. Look at the tire's characteristics (ride, wear, etc) on TireRack for tires that have a good ride.
Front 205/50 R17 with Rim 7x17 - 55
Rear
225/45
R 17 with Rim 8,5x17 - 50/48
or
255/40
R 17
if using original Porsche rims
I have the smaller rear dimension as winter tires and the wider ones in summer. There is no difference in ride quality.
I doubt you would see any difference.
255/40 is 102 mm side wall height
225/45 is 101 mm side wall height
Maybe 225/50 would feel better, but then you are messing up with ABS/speed sensors due to different wheel height/rotational speed front vs back. Or you need to match front tires now.
I find Boxster to be more comfortable on bumpy road that some of the hatchbacks.
Not correct.
The 225 size is listed in my owners manual for Winter tires. I have Vredestein Winter tires in that size. These tires are/were listed in the N tire list from Porsche, but do not have N on sidewall.
The narrower tire would be the more comfortable ... less expensive, too.
