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Genuine CSL v CS Wheels

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RvsBmw
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Genuine CSL v CS Wheels

Post by RvsBmw » Wed Jul 28, 2021 12:49 pm

tomscott wrote: Sun Jul 11, 2021 10:00 am Ive got OEM CSLs not CS.

235 35 19
265 30 19

Need some new tyres and struggling to get Mich Pilot sports 4 anywhere seem everyone is sold out. Anybody got any links?
In The Netherlands its no problem to source 245/275 PS4S.
Directly from France to my BMW dealer.
Current: BMW Z4M Coupe '07 (one-off) | Midnight Blue Metallic | Syrah Blue Leather | OEM CSL's | Aero's
Gone: BMW Z4M Coupe '08 | Sapphire Black | Bicolour Silverstone Anthrazit | OEM CSL's | Aero's

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Genuine CSL v CS Wheels

Post by tomscott » Wed Jul 28, 2021 1:20 pm

Is increasing the tyre size recommended?

275s are the same price but the 245s are an extra £35 each in the UK

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Genuine CSL v CS Wheels

Post by RvsBmw » Wed Jul 28, 2021 3:31 pm

tomscott wrote: Wed Jul 28, 2021 1:20 pm Is increasing the tyre size recommended?

275s are the same price but the 245s are an extra £35 each in the UK
Hi Tom,

Yes, because its closer to the size of the orginal 18inch with the 40front/35rear.
Less deviation, so should be better, but both is not the problem.
My BMW dealer in The Netherlands did 'advise' this btw.

I dunno what the price difference are here, Got them from a friend from a friend ;).
Price was to good to skip, even standard michilins where more expensive in retail.
Current: BMW Z4M Coupe '07 (one-off) | Midnight Blue Metallic | Syrah Blue Leather | OEM CSL's | Aero's
Gone: BMW Z4M Coupe '08 | Sapphire Black | Bicolour Silverstone Anthrazit | OEM CSL's | Aero's

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Genuine CSL v CS Wheels

Post by tomscott » Wed Jul 28, 2021 4:05 pm

RvsBmw wrote: Wed Jul 28, 2021 3:31 pm
tomscott wrote: Wed Jul 28, 2021 1:20 pm Is increasing the tyre size recommended?

275s are the same price but the 245s are an extra £35 each in the UK
Hi Tom,

Yes, because its closer to the size of the orginal 18inch with the 40front/35rear.
Less deviation, so should be better, but both is not the problem.
My BMW dealer in The Netherlands did 'advise' this btw.

I dunno what the price difference are here, Got them from a friend from a friend ;).
Price was to good to skip, even standard michilins where more expensive in retail.
I don't think thats correct... according to an online fitment calculator.

224 - 240 40 18 8j 30 offset the rolling radius is 2039.5

163 - 245 35 19 8.5j 44 offset the rolling radius is 2032.9

163 - 235 35 19 8.5 44 offset the rolling radius is 2054.9

The difference isnt huge but apparently 235s are closer and they are the OE CSL size from the factory.

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Genuine CSL v CS Wheels

Post by RvsBmw » Wed Jul 28, 2021 4:26 pm

tomscott wrote: Wed Jul 28, 2021 4:05 pm I don't think thats correct... according to an online fitment calculator.
The difference isnt huge but apparently 235s are closer and they are the OE CSL size from the factory.
Hi Tom,

Offtopic
Compliments about your car. I think my mail about the CSL rims didnt arrrive ;).

Ontopic
Front:
- M224: 225/45/18 42ET 8J: 2069mm
- M163: 235/35/19 47ET 8.5J: 2032mm (speedo 1.8 slower)
- M163: 245/35/19 44ET 8.5J: 2057 (speedo 0.7 slower)

Rear:
- M224: 255/40/18 9J: 2076mm;
- M163: 265/35/19 30ET 9.5J: 2019mm (speedo: 2,7% slower);
- M163: 275/35/19 27ET 9.5J: 2038mm (speedo: 1.8% slower);

Did i miss something? But the MM are closer, but the margin is negligible. Just do a long burnout on the M224 and you have little difference :).
Current: BMW Z4M Coupe '07 (one-off) | Midnight Blue Metallic | Syrah Blue Leather | OEM CSL's | Aero's
Gone: BMW Z4M Coupe '08 | Sapphire Black | Bicolour Silverstone Anthrazit | OEM CSL's | Aero's

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Genuine CSL v CS Wheels

Post by tomscott » Wed Jul 28, 2021 4:41 pm

RvsBmw wrote: Wed Jul 28, 2021 4:26 pm
tomscott wrote: Wed Jul 28, 2021 4:05 pm I don't think thats correct... according to an online fitment calculator.
The difference isnt huge but apparently 235s are closer and they are the OE CSL size from the factory.
Hi Tom,

Offtopic
Compliments about your car. I think my mail about the CSL rims didnt arrrive ;).

Ontopic
Front:
- M224: 225/45/18 42ET 8J: 2069mm
- M163: 235/35/19 47ET 8.5J: 2032mm (speedo 1.8 slower)
- M163: 245/35/19 44ET 8.5J: 2057 (speedo 0.7 slower)

Rear:
- M224: 255/40/18 9J: 2076mm;
- M163: 265/35/19 30ET 9.5J: 2019mm (speedo: 2,7% slower);
- M163: 275/35/19 27ET 9.5J: 2038mm (speedo: 1.8% slower);

Did i miss something? But the MM are closer, but the margin is negligible. Just do a long burnout on the M224 and you have little difference :).
Apologies I obviously got my figures wrong way round! Thanks for correcting.

Sorry no I didn't receive it!

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Genuine CSL v CS Wheels

Post by RvsBmw » Wed Jul 28, 2021 4:57 pm

tomscott wrote: Wed Jul 28, 2021 4:41 pm Apologies I obviously got my figures wrong way round! Thanks for correcting.

Sorry no I didn't receive it!
No problem for sure, margins are realy small. But i would go for the 245/275 again, sure for the look on the rims! More beefy tires like BMW are delivering today.
So more protection for the OEM CSL rims, worth it right ;), more grip because wider tyres, less deviation with 245/275, better looks but thats personally. I think a nobrainer :).
Current: BMW Z4M Coupe '07 (one-off) | Midnight Blue Metallic | Syrah Blue Leather | OEM CSL's | Aero's
Gone: BMW Z4M Coupe '08 | Sapphire Black | Bicolour Silverstone Anthrazit | OEM CSL's | Aero's

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