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Replace e89 front tyres - 225/35/19 with 235/35/19?

Alloy wheels and tyre discussion
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Braveatom
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Replace e89 front tyres - 225/35/19 with 235/35/19?

Post by Braveatom » Mon Feb 05, 2024 11:52 pm

As the title says, I’m wondering if there’s any issue replacing the front tyres on an E89 with 235/35/19, from of the stock 225/35/19?

Willtheyfit says a small rolling circumference, and a 3.5mm raise in right height- small enough to ignore? Mostly concerned with rubbing. I already increased the back tyres from 30 to 35, a similar increase in circumference / speedo, so not bothered by that.

If you wonder why (probably not, but I’ll mention it anyway) - I’ve had enough of the run flats on the crummy roads and potholes near me and want a smoother ride. The new size tyres save a few hundred quid, taking the sting out of replacing 4 new tyres bought in the last year.

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B21
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Replace e89 front tyres - 225/35/19 with 235/35/19?

Post by B21 » Tue Feb 06, 2024 12:08 am

On stock alloys no rubbing ..your 8j rim is arguably a bit narrow but not way out depending on what / whose tyres you are fitting

The wider tyre will help address the imbalance in circumferences front and rear ..ideally should be within 1% and not more than 2%
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
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Braveatom
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Replace e89 front tyres - 225/35/19 with 235/35/19?

Post by Braveatom » Thu Feb 08, 2024 9:04 pm

Thanks for the info, it’s appreciated. The wheels are 296, right now I’m playing with sizes to see if I can get under 2% difference, as new sizes 255/35 and 235/35 is 2.14%. However, changing sizes increases the cost, so it’s debatable whether it’s worth changing from the stock size, as that was purely to save a few quid!

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Big Andra
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Replace e89 front tyres - 225/35/19 with 235/35/19?

Post by Big Andra » Thu Mar 28, 2024 9:17 pm

I find this chart handy for tyre sizing.
e47f4212f147d403d4cc1eeb75b0b5f3.jpg
e47f4212f147d403d4cc1eeb75b0b5f3.jpg (143.62 KiB) Viewed 288 times
2009 E89 2.5 Alpine white.

Braveatom
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Replace e89 front tyres - 225/35/19 with 235/35/19?

Post by Braveatom » Fri Apr 19, 2024 7:54 am

Thanks for the chart, it's really useful and over advice, I went with 225/40/19 to match the back at 225/35/19 - a 0.6% difference. They are overall a few mph wrong, but this is roughly making the speedo correct.

The road are really poor roads here, so a little bit extra on the wall is a good thing.

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