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17" wheels on a C4S?

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21 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCH17" wheels on a C4S?

Leading reported evidence

Run pirelli 240 winter sports

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I am running pirelli 240 winter sports on some aftermarket 18" rims, does pretty well, but the required spacers to clear the big brakes were a hassle.

17" wheels on a C4S?
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Leading evidence: 'Run pirelli 240 winter sports' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run pirelli 240 winter sports' (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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Use different spacers, though

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I think they used different spacers, though.

17" wheels on a C4S?

Use 17" wheels

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Suggestion

use 17" wheels on the 996 C4S.

17" wheels on a C4S?

Use 17"s

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Suggestion

I think Tirerack is wrong, however, as someone else on this list did use 17"s for their snow tires.

17" wheels on a C4S?

Use spacers

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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

I also have 18's, had to use spacers to barely clear the big brakes.

17" wheels on a C4S?
Frequently discussed actions (5)

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

Run pirelli 240 winter sports

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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

I am running pirelli 240 winter sports on some aftermarket 18" rims, does pretty well, but the required spacers to clear the big brakes were a hassle.

17" wheels on a C4S?

Use 17" wheels

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

use 17" wheels on the 996 C4S.

17" wheels on a C4S?

Use 17"s

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

I think Tirerack is wrong, however, as someone else on this list did use 17"s for their snow tires.

17" wheels on a C4S?

Use different spacers, though

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
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 think they used different spacers, though.

17" wheels on a C4S?

Use spacers

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

I also have 18's, had to use spacers to barely clear the big brakes.

17" wheels on a C4S?
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.

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

  • Rennlist: 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: 20261027T005001Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Can you fit 17" wheels on a C4S?

POST 2Original post

I believe so. I guess for snows? I am running pirelli 240 winter sports on some aftermarket 18" rims, does pretty well, but the required spacers to clear the big brakes were a hassle. The big brakes might also pose a problem with putting 17" rims on it as well. Chris

POST 3 / ORIGINAL POSTEROriginal post

Yes its for snows I have 18" on now and think it would do much better in the snow with 17"

POST 4Original post

I was told by tirerack that there is no room for the brakes in the 17" wheels in the C4S. I had to get 18" for my snows.

POST 5Original post

Bav, I think you're right. I also have 18's, had to use spacers to barely clear the big brakes. Chris BTW, it's a whole new beast in the snow with snow tires!

POST 6Original post

Yeah, Tirerack told me the same thing so I bought the 18s cup 3 wheels and Blizzak tires (the 18"s are very good in the snow BTW). I think Tirerack is wrong, however, as someone else on this list did use 17"s for their snow tires. I think they used different spacers, though. I'd try calling Wheel Enhancement at [phone removed] ( http://www.wheelenhancement.com/ ) they seem to know a little more about Porsches than Tirerack.

POST 7Original post

I found the thread. Click here: https://rennlist.com/forums/showthre...3&page=2&pp=15

POST 8Original post

That thread refers to the 993 C4S. You cannot use 17" wheels on the 996 C4S. At least not OEM 17" wheels.

POST 10Original post

Most likely for brake clearance issues. The brakes on the 996 C4S are slightly bigger than those on the 993 C4S.

POST 11Original post

I have a 2004 C4S Cab with 17" Dunlop Winter M2's, however, you need spacers. 6mm front, 25mm rear. Works like a charm, car rides perfectly in the snow.

POST 14Original post

Ah, they are not OEM. I wonder if Porsche says no to the 17's because some C4S cars might be equipped with even bigger 350 mm PCCB brakes (optional). They just don't want to take a chance with some people trying, I guess.

POST 15Original post

Could be. However, I was told about this option from my Porsche dealer. I had these tires/wheels with my 2001 C4. When I sold the C4 I was under the impression that I needed 18" wheels. The dealer talked me out of buying new wheels/tires and told me the spacers would work fine. He was under the impression it was more marketing for parts sales then anything technical.

POST 16Original post

This is my 4th winter on 17s on the Turbo......have run 210/240 Pirellis....now Blizzaks...........wheel size is not the issue........it's totally offset and wheel design......for instance, for the 8J Strosek monoblocks that I run in the front....43 offset clears cals no prob. 17s are great in the snow (IMHO).......I run them on the C4Cab also, and did for years on the 993.

POST 17 / ORIGINAL POSTEROriginal post

Which do you think are better the Pirellis or the Blizzaks?

POST 18Original post

I have P's, they are great but I think blizzaks are slightly better, but they are hard to find this late in the season.

POST 19Original post

I don't think you can go wrong with either........price about the same....... Porsche has high on the 240s this year in their Christoph artical.......I have Dunlop wintersports on the AMG and they take a back seat (IMHO) to either the P or B. Good luck finding size you want ......as C4S Surgeon mentioned.....tough time to be looking.

POST 20Original post

Does the C4S have the same brakes as a Turbo? Some 17's will fit on the rear of a 996tt but not the front.

POST 21Original post

Correct, that they are Turbo big reds, and correct that the fronts are usually the challenge for caliper clearance........but again, it just depends on offset and which wheel......even a problem wheel with some spacing gets offset down to clear.

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