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225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCH225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Leading reported evidence

Run rest of the day

Performed · outcome unconfirmed

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Performed · outcome unconfirmed · Original poster

He then ran the rest of the day on the full width Cups and kept it all neat and tidy.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK
Frequently discussed work

Recommend narrow option winter tyres

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Suggestion · Original poster

These aren't 'N' rated but they are the Porsche recommended narrow option winter tyres on the 986.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK
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Leading evidence: 'Run rest of the day' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend narrow option winter tyres' (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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1 matching discussions · 7 captured posts examined · 1 partial discussions

Compare 4 other evidence results

Use on my 944

Performed · outcome unconfirmed

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
1
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 performed work without a confirmed outcome
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.

Performed · outcome unconfirmed

I have 2 sets of 8J 17" wheels with 225/45/17 track day tyres on them - used on my 944.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Performed · outcome unconfirmed

I have 2 sets of 8J 17" wheels with 225/45/17 track day tyres on them - used on my 944.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Performed · outcome unconfirmed

I have 2 sets of 8J 17" wheels with 225/45/17 track day tyres on them - used on my 944.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Recommend narrow option winter tyres

Suggestion or failed attempt

No successful repair reported for this finding.

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Discussions
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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.

Suggestion · Original poster

These aren't 'N' rated but they are the Porsche recommended narrow option winter tyres on the 986.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Run on two set of fronts - just

Suggestion or failed attempt

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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.

Suggestion · Original poster

I took these shots a good few years ago but what you see is a genuine 993RS in expert hands running on two set of fronts - just for laughs.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Run regular profile 255/40's

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
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
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've been running regular profile 255/40's for the past 10 seasons but fancied a change..

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK
Frequently discussed actions (8)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Recommend narrow option winter tyres

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

These aren't 'N' rated but they are the Porsche recommended narrow option winter tyres on the 986.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Run on two set of fronts - just

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 took these shots a good few years ago but what you see is a genuine 993RS in expert hands running on two set of fronts - just for laughs.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Run regular profile 255/40's

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've been running regular profile 255/40's for the past 10 seasons but fancied a change..

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Run rest of the day

No successful repair reported for this finding.

0
Reported fixes
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Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

He then ran the rest of the day on the full width Cups and kept it all neat and tidy.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Use of a road-based car

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Suggestion

You could probably make it work but Hartech have got their Boxster S's handling very well on staggered tyres (265 rear, 235 front as 225 wasn't available in the Pirelli slick control tyre), and I'd suggest they should be the benchmark for track use of a road-based car.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Suggestion

You could probably make it work but Hartech have got their Boxster S's handling very well on staggered tyres (265 rear, 235 front as 225 wasn't available in the Pirelli slick control tyre), and I'd suggest they should be the benchmark for track use of a road-based car.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Use on my 944

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
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Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
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.

Performed · outcome unconfirmed

I have 2 sets of 8J 17" wheels with 225/45/17 track day tyres on them - used on my 944.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Performed · outcome unconfirmed

I have 2 sets of 8J 17" wheels with 225/45/17 track day tyres on them - used on my 944.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Performed · outcome unconfirmed

I have 2 sets of 8J 17" wheels with 225/45/17 track day tyres on them - used on my 944.

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Use rim

No successful repair reported for this finding.

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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

A good idea, re-use the rim but fit the narrower tyre for winter,

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK

Use road wheels & tyres (falken 453, 225f, 255r)

No successful repair reported for this finding.

0
Reported fixes
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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

I'm doing my first track day in it at Silverstone next weekend - will probably use the road wheels & tyres (Falken 453, 225F, 255R).

225/45 R17 Winter Tyres on a 986 - Page 1 - Boxster/Cayman - PistonHeads UK
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.

7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • PistonHeads: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

These aren't 'N' rated but they are the Porsche recommended narrow option winter tyres on the 986. Continental WinterContact TS 830P 225/45 R17 94V XL I've been running regular profile 255/40's for the past 10 seasons but fancied a change.. They look good on the 8.5J rim to my eyes (i.e. not too stretched) but you can't disguise the fact that they are 30mm narrower per side. Looking forward to feeling a virtual increase in HP at the rear wheels! ;-) P.S. The comparison shot shows the PS2 N3

POST 2Original post

A good idea, re-use the rim but fit the narrower tyre for winter, Both the 255 summer and rhe 225 winter are within the rulebook for an 8.5j rim. Its amazing the difference 30mm makes in the photos though. What did you do at the front?

POST 3 / ORIGINAL POSTEROriginal post

I do have two sets of 17" OEM rims ;-) Up front, I am running Dunlop Wintersport M3's in the default 205/50 profile as they have at least one more seasons life left in them. It was important for me to keep to an approved tyre sizes as the local laws and 'MOT' equivalent stipulate that you must. Porsche list the Conti 225/45 TS830p as an approved choice for the 8.5J rears but clearly haven't come to an agrangement whereby Continental stick an N rating on them - presumably because the volumes would be miniscule. Looking forward to some 'bad' weather now to put them through their paces!

POST 4Original post

I have 2 sets of 8J 17" wheels with 225/45/17 track day tyres on them - used on my 944. I was wondering whether a square setup would work on the Boxster?

POST 5Original post

edh said: I have 2 sets of 8J 17" wheels with 225/45/17 track day tyres on them - used on my 944. I was wondering whether a square setup would work on the Boxster? You could probably make it work but Hartech have got their Boxster S's handling very well on staggered tyres (265 rear, 235 front as 225 wasn't available in the Pirelli slick control tyre), and I'd suggest they should be the benchmark for track use of a road-based car.

POST 6Original post

thegoose said: edh said: I have 2 sets of 8J 17" wheels with 225/45/17 track day tyres on them - used on my 944. I was wondering whether a square setup would work on the Boxster? You could probably make it work but Hartech have got their Boxster S's handling very well on staggered tyres (265 rear, 235 front as 225 wasn't available in the Pirelli slick control tyre), and I'd suggest they should be the benchmark for track use of a road-based car. Thanks - very useful. I'm doing my first track day in it at Silverstone next weekend - will probably use the road wheels & tyres (Falken 453, 225F, 255R). It's just had new m030 suspension fitted, getting the geo done next week. If it goes well I might retire the 944 (it's broken at the moment & could be terminal - the car is also worth a lot more in bits than it is fully working) I don't think there should be much more to do to the Box apart from a change of pads & maybe a sump extension - do you know which one Hartech have fitted (or have they made their own?)

POST 7 / ORIGINAL POSTEROriginal post

The 235/265 stagger sounds great on an S chasing lap times but taking grip away from the rear can have hilarious consequences I took these shots a good few years ago but what you see is a genuine 993RS in expert hands running on two set of fronts - just for laughs. The guy managed to squeeze the spare fronts c/w second hand tyres inside the car so that he could destroy them in the morning session at insignificant cost. He then ran the rest of the day on the full width Cups and kept it all neat and tidy. Edited by MogulBoy on Friday 8th November 11:40

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