Non runflat tyre sizes - implications?

del_tl1000r · Post by **del_tl1000r** » Fri Jul 12, 2019 3:49 pm

The fronts overall diameter that you have is 647mm. A difference of 13mm over stock which will make the car around 6mm taller at the front. The tyres fill the arches better though with the 19s rather than the 17s.

ZedConvert · Post by **ZedConvert** » Fri Jul 12, 2019 4:17 pm

del_tl1000r, gap between tyre and arch seems quite a bit more than your set up, surprising considering my tyre dimensions and the std suspension.

del_tl1000r · Post by **del_tl1000r** » Fri Jul 12, 2019 4:36 pm

I see what you mean. Is your driveway perfectly flat as mine isn't and the car sits a bit weird on it? One side can look as though the car is high and the other side looks like it has been lowered

del_tl1000r · Post by **del_tl1000r** » Fri Jul 12, 2019 4:40 pm

viewtopic.php?f=23&t=109399&start=15

Check out my before and after pics here and see what you think.

del_tl1000r · Post by **del_tl1000r** » Fri Jul 12, 2019 4:50 pm

Check these ones also.

viewtopic.php?f=6&t=45161&p=1587253#p1587253

ZedConvert · Post by **ZedConvert** » Fri Jul 12, 2019 4:57 pm

del_tl1000r, yeah it's the same both sides.

I can literally fit three fingers in width between the tyre and arch...

: EF9910B1-6AAB-466E-9746-2A4BA848106F.jpeg (329.52 KiB) Viewed 670 times

del_tl1000r · Post by **del_tl1000r** » Fri Jul 12, 2019 5:07 pm

I'm at work just now but I'll check when I leave and take pics. I'll use the finger method. I take it that's the gap at the top of the arch?

ZedConvert · Post by **ZedConvert** » Fri Jul 12, 2019 5:11 pm

del_tl1000r, yep, also known as 5.5cm

Seems pretty much the same all round...

del_tl1000r · Post by **del_tl1000r** » Fri Jul 12, 2019 8:03 pm

: 20190712_190640.jpg (68.13 KiB) Viewed 658 times

: 20190712_190652.jpg (75.08 KiB) Viewed 658 times

: 20190712_190626.jpg (188.29 KiB) Viewed 658 times

Took a measurement from road to wheel arch

Front = 680
Rear = 676

Nictrix · Post by **Nictrix** » Fri Jul 12, 2019 10:44 pm

ZedConvert wrote: ↑Fri Jul 12, 2019 4:57 pm del_tl1000r, yeah it's the same both sides.

I can literally fit three fingers in width between the tyre and arch...

EF9910B1-6AAB-466E-9746-2A4BA848106F.jpeg

Is that the drivers side rear?
Is your tyre on the wrong side?

ZedConvert · Post by **ZedConvert** » Fri Jul 12, 2019 11:04 pm

Nictrix, yeah that's the drivers side rear, it's a staggered set up.

Nictrix · Post by **Nictrix** » Fri Jul 12, 2019 11:05 pm

ZedConvert wrote: ↑Fri Jul 12, 2019 11:04 pm Nictrix, yeah that's the drivers side rear, it's a staggered set up.

Its a rotational tyre thats facing the wrong direction.

ZedConvert · Post by **ZedConvert** » Fri Jul 12, 2019 11:12 pm

Nictrix, ah you spotted the deliberate mistake... even BMW didn't notice today, and they were all over the wheels.

Lesson learned... take your time!

Call me novice... But don't see how this will affect the gap between arch and tyre.

Nictrix · Post by **Nictrix** » Fri Jul 12, 2019 11:24 pm

ZedConvert wrote: ↑Fri Jul 12, 2019 11:12 pm Nictrix, ah you spotted the deliberate mistake... even BMW didn't notice today, and they were all over the wheels.

Lesson learned... take your time!

Call me novice... But don't see how this will affect the gap between arch and tyre.

It wont affect the gap at all, I just thought you might want to know your tyres were on wrong.
Does it drive better in reverse?

ZedConvert · Post by **ZedConvert** » Fri Jul 12, 2019 11:26 pm

Nictrix, yeah and the funny thing is... It flew through the MOT last week with BMW- I'm not the only stupid one

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