255-35-20 front 295-30-20 rear

[HotRodM4]

Originally Posted by DeTh

I think 255/35r20 will rub when turning. That's a HUGE diameter tire. I am on 275/30r19 and I rub on the fender liner on full lock on 19x9et23.

What size spacer and drop you currently running?

[M3SQRD]

Originally Posted by andrewmr

I think there might be something off in the chart....

If the sidewall height for tire one is 3.5 inches and the tire height for tire two is 3.5 inches..... how come it's .84 percent different?


Or is it just a rounding thing?

They’re using more decimal places in their calculations. It looks like they’re using 6 decimal places in the calculations yet reporting measurements to no or 1 decimal place and % diff calculations reported to 2 decimal places. There’s zero consistency in their numbers and calculations. Also, everything reported here is based on calculations, no actual measurements. Actual tire dimensions vary by manufacturer to manufacturer and rarely do they match calculated values.

[DeTh]

Originally Posted by HotRodM4

What size spacer and drop you currently running?

I am now lowered on kw ddc, but it kissed just slightly on stock ride height. My wheel spec is 19x9 et 23.

[HotRodM4]

You guys thinks Michelin PS4S or A/S 4S tires in 255/35/20 would rub?

Maybe the brand of tire will affect how much rubber you actually get. I know Michelin gives a little more usually.

[M3SQRD]

Originally Posted by HotRodM4

You guys thinks Michelin PS4S or A/S 4S tires in 255/35/20 would rub?

Maybe the brand of tire will affect how much rubber you actually get. I know Michelin gives a little more usually.

It’s 0.70” larger in diameter than the 265/30-20 stock size. That’s a significant increase in diameter (2.7%). There’s a good chance you’ll run. Also, a 295 on a 10” wide rim will have a decent overhanging tread. This causes a more abrupt breakaway at the limit of grip.

[Palomequet]

295s in 10” is OEM fitment in M5 F10 with no issues

[Groganrocket]

Will 275/30/20 fit on the front wheel is 20x10et20
And 305/25/30 or 295/30/20 fit I. The rear wheel which is 20x11 et 37 thanks and I’m lowered oon kw has.

[Palomequet]

I found the best setting in my experience is 275-30 front 20X10 et 30 and 305-30 rear 20X11 et 40, Michelin PS4, lowered on HAS Mperformance in their lowest position.

[DaytonaF80]

I know this thread is based off of 20 inch wheel setups, but has anyone here ran the G8X Star spec PS4S in 275/35R19 on their F80?

My Cup2 setup on my 763m's are just about ready for a new set of tires and I was looking at doing the following:

Front: 275/35R19 PS4S BMW Star spec
Rear: 295/30R20 PS4S (generic spec)
Wheel Front: 19x9 ET29
Wheel Rear: 20x10 ET40

F80 Comp, stock suspension, concerned about some rubbing with the square shoulders of these tires. Thanks