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2007 Forester XT
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16 Posts
Discussion Starter #1
I have a 2008 Forester XT with std 17" rims and the mediocre Geolanders in 215/55/17

I need a new set of tyres and want to go wider and lower ....would 235/50/17 work or should I rather go slightly narrower at 225/50?

What make of tyres do you guys recommend?

Thanks in advance.
 

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2007 Forester XT manual
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1,452 Posts
The 225/50 will have a smaller diameter. And check the load ratings. Do you get Bridgestone Potenza RE 001 Adrenalins in SA? If so you won't be disappointed with them. Maybe try 225/55 - that's what I'm thinking of doing next but might have trouble squeezing the spare of the same size in the well.
 

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none none
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8,844 Posts
A 235/50 may be close or rub the rear struts. I ran 235/45 before which was a bit too small, and have 225/50 now which are still a little small but look right if you're lowered. I think 225/55 would look best on a stock height forester, if you have clearance to the rear strut a 235/50/17 is the perfect size for a forester, but I'd look for one with a 9.6" section width or less (that seems to be the cutoff for fitting a stock forester). However a 235/50 is a little wide for a 7" wheel, I'd probably stick to a 225 on the stock 17x7 wheels.
 

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2009 Forester XT Limited
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376 Posts
Here is a nice tire size calculator that allows you to determine speedometer accuracy with any given tire and visualize size changes better as well.

The problem I ran into was that I wanted a particular circumference tire that nobody made so I had to go a bit wider than I would have liked on my truck rims, good luck.

Tire size calculator
 

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The Sub kit guy
2005 Forester X & XT VF39
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13,008 Posts
If your on stock or Swift springs, I personally like 225/55/17s. They fill the up the wheelwell real nice and ride smoother than a 50 series.
 

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2007 Forester XT manual
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1,452 Posts
Can you feel the difference in acceleration between the standard 215/55 and the 225/55 considering that it is a taller tyre?
 

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13 Liberty GT wagon AT
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436 Posts
not much diff

It's not much different Guzzla - the overall diameter is only 10mm taller for the 225/55 - 1.6% alteration of the speedo reading (reads slower than your actual - which means your average SH speedo would read only about 5kph fast!). I dont think you'd be able to pick any accelerative difference anyway.

Thanks for the calculator Papa-D.

I'm certainly going to go the RE001's in 225/55 for my next tyres soon.:woohoo: The geosquelers are not so flash as they wear I think.

I'll just leave the spare stock as it only just fits and just allows the blind to fit under the rear floor.
 

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2006 Forester XT Limited
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41 Posts
I run 235/50/17 Falken ZE-912 on my Forester with 17x7 BBS Wheels. They fit fine with no rubbing. After a little over 30,000 miles they're about ready for replacement though. Looking at other alternatives now but I plan to keep this size as it looks good.
 
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