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Old 05-24-2010, 08:15 AM   #1
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Urgent trackday tyre advice needed

Hi - I need to get some tyres for a weekend at the Nurburgring and Spa this weekend and have just been told that my preferred tyres are out of stock in the standard sizes.

I'm running a pair of 987 17's (6.5's and 8.5's IIRC) and was going for a pair of 205/50's and 255/40'17's.

I've been offered the following:

Option 1:

215/45/17 & 235/45/17

Option 2:

225/45/17 & 245/40/17


My only concerns are: will a 235 be too narrow for the rear - and will a 225 be too wide for the front?

I need to do something today, so any help appreciated.
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Old 05-24-2010, 08:55 AM   #2
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ive seen people run 245 upfront with 245 rear for a square setup. right now I have 225 on the fronts and 265s on the back

personally from those options go 225 and 245 have fun but if you really have a 6.5 fronts then i wouldnt do 245s up there good luck
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Old 05-24-2010, 09:32 AM   #3
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Cool - Thanks
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Old 05-24-2010, 02:05 PM   #4
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tires

I don't think any of the sizes you mentioned are going to be a problem I'm running 275/245 with 10mm spacers
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Old 05-24-2010, 02:22 PM   #5
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Gary, why not go with a mix and match.... 215 and 245?? You really don't want to go with a 225 on a 6.5" wheel...
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Old 05-25-2010, 02:10 AM   #6
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Thanks - Curious - why?
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Old 05-25-2010, 09:44 AM   #7
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6.5" wheel wouldn't give a 225mm tire enough support. Minimum for a 225 is 7.5"
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2001 Boxster Artic Silver / Black Interior
-GT3 Front Bumper w/ Lip
-Side Skirts
-Gemballa Exhuast and Cats
-O.Z. Racing 18" Wheels
--18X8.5Front 18X10 Rears
-Michilen PS Tires 225/40/18 & 285/30/18
-5mm Rear Spacers
-Porsche Door Sills
-H&R Springs
-Powerflow Intake
-B&M Short Shifter
-Pioneer Avic-F90BT Navigation
-Focal Polyglass 165VR3
-Alpine PDX 5 Amp
-Bose OEM Subwoofer & Midrange
-Audio Controld DQXS (DSP)
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Old 05-25-2010, 09:58 AM   #8
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Kumho recommends 7-8.5" rim for a 225 tire. A 6.5 is not ideal. Will it work? Yes it will.
http://www.tirerack.com/tires/tires.jsp?tireMake=Kumho&tireModel=Ecsta+XS
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Old 05-26-2010, 02:06 AM   #9
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Great - thanks for the clarification
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