Has anyone try fitting a 19 or 20" rim/wheel set?

can share your experience?

Don't have but I think 20's will look too big and can make the ride quality rougher.

true also
considering current 18" are rather bumpy if compared to sedan. thanks for sharing.

The Style 572M with 225/45R19 rubbers look pretty good on the F48.
20" rims are too large for the X1, comfort wise and probably technically too.

thanks. but if i am to change, i wouldnt be using back BMW's rims; their design is jst not to my liking.

What is the current tire size?

i cant remember the profile....will chck and update once i have the info.

OEM size for the F48 is 50 series.

May i know what's the meaning of 50 series?

Sidewall profile

What's the width?

225, or 7J

In that case the closest conversion to 19' will be 225/45/19 as mentioned above. However if TS already feels 225/50/18 is a bit bumpy then forget about it because 225/45 will noticeably be more bumpy!

forgot to check whether stock is indeed 225/50/18..but yup it's pretty bumpy even with 18". so i guess i can forget getting a 19"

just took photo this morning..here's the profile : 225/50/R18

Yup, 225/50 is actually still pretty thick profile with 11.2cm sidewall height, so it is still relatively pretty comfortable, not to mention you're using Turanza which is already supposed to be comfort level tire model. The fact that even with such setup you still feel it's rather bumpy means you absolutely would not be able to tolerate anything remotely low profile tires at all! If you upsize to 19'using 225/45/19 as the closest conversion size, then you'd only have 10.2 cm sidewall, so loosing that 1cm will probably brake your back already! So yeah, just forget it and can close this thread.

I think I realize now why you feel it's still bumpy. It's because they're run flat tires!

Yes they are sir! you mean run flat will be less comfy compared to normal ones?

Hmm, maybe i should change to normal once after these worn out.

Else like what you mentioned above, i reckon upsizing to 19" is a big no no if i want comfort over style.

And thanks on the Turanza info, i have no idea what brand it was actually. LOL. my initial impression was hmm, maybe some cheapo thailand tyre like thunderer or something. i reckon base on what you said, it's some good tyre then

Yes RFT will have stiffer sidewall to enable supporting the load even without air.

Turanza is actually Bridgestone tire model. ☺️ It's a good mid range category tire, similar like Michelin Primacy.

Ahh. i see. i am total noob when it comes to tyres.

thanks for all the info. i guess i will give non-RFT a try once current ones worn out. Then will see whether still relevant to upsize to 19". Appreciate it!