ScoobyNet.com - Subaru Enthusiast Forum - upgrade to 18's....speedo differences?

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scooby_dobby_doak

05 January 2012 07:54 PM

upgrade to 18's....speedo differences?

I have just purchased some 18's for my 2005 Blob WRX and wondered what profile I should be running to keep speedo accurate. I take it thats all i need right? Think I should be running a 35 profile from what i've heard. Thanks

Saalro

05 January 2012 08:08 PM

This is a great tool:

http://www.tyres-pneus-online.co.uk/...ce-advice.html

Thanks
Sam

The Pink Ninja

05 January 2012 08:14 PM

225/40/18 will be the ones you want

lee67

05 January 2012 08:29 PM

im running 225/40/18@s and speedo is fine....ride is a little harsh tho...i wouldnt go to 35's...thinking of trying 45's next

scooby_dobby_doak

06 January 2012 07:40 PM

Thanks all - much appreciated

ad uk

08 January 2012 01:58 AM

i have 35s oh god there thin lol

ScoobySteve69

08 January 2012 07:35 AM

Quote:

Originally Posted by GAZ2293 (Post 10413384)

225/40/18 will be the ones you want

Tomwrx

08 January 2012 10:56 AM

+2 been running 225/40/18 on my wrx for 2 yrs now, no probs at all with speedo etc

CREWJ

08 January 2012 11:06 AM

225/35/18 are the closest but still larger diameter than standard.

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