MikeThailand

Hi friends,
I am buying the new LCI 525 i next month(our engine here is 2500 cc and with 218 hp,0-100 in 7.9 sec)
It will cost me 130000 usd,its abit crazy here in thailaand and believe me 525i is the biggest engine here

I was going for 520d (95000 usd) but no active steering,no adaptive headlights,no comfort seat,no new gearshift,and no front bmw trademark chromium)
Hope I made the right choice spending 35000 usd more for these features--feedback greatly appreciated

My main question is I like smooth rides and this car comes with stock wheel 17 inch run flat tyre 225/50 both front and rear same
I want to change to M 166 design 19inch but i dont want to put the car down at all and I need soft smooth ride
I was thinking 235/45/19 front and 265/40 back,is this logic possible? i mean will it rub?

second option we all know this has been tested and recommended spec its 245/35 front and 275/30 rear--is this ride smooth,roads in thailand is very rough and this is my big concern

I Thank you all members in advance and look forward to be part of this forum..

Mike

Current E46 --323i SE year 2003

Rizbel

Wheel total diameter should be similar to your stock stock 17"s.
17" = 25.858 in. for 225/50/17
19" = 25.75 in. for 245/35/19 front and 25.49 in for 275/30/19 or 25.73 in for 285/30/19 rear
Without lowering suspension, ride should be similar to stock. It's just that lower profile
tires are more susceptible to damage from potholes and curbsides.


FYI
-------------------------------------------
Width x Aspect Ratio = Section Height
Section Height x 2 = Combined Section Height
Combined Section Height + Wheel Diameter = Tire Diameter

Example: 185/60R14 85H or 185/60HR14

185mm x .60=111mm
111mm x 2=222mm
222mm + 355.6mm(14")= 577.6mm or 22.74"

MikeThailand

Thank you very much for your input,do you think without lowering 245/40/19 would fit the front?

Rizbel

BTW.

MikeThailand

Thanks so much,you are kind

Rizbel

245/40/19 = 26.71 in.
Uhm That's 0.86 in taller.
Check your wheel to fender gap distance.