[Dav Rai]

Hi guys,

I wanted to find out if the following will fit on my car without any problems (ie:no spacers etc)

Front: 255/35/R19
Rear: 275/30/R19

My car has the Msport suspension.

current standard tyres are:

Front: 245/45/R17
Rear: 255/40/R17


Thanks

Dav

 

[shaft69]

My brother runs on his 530i sprt F8.5 and R9.5x19 F235/35 and R255/30.

 

[Gazza600]

Apologies for the stupid question but why the staggered tyre profiles chaps? What is the reasoning behind it? :shifty:

 

[Deano16v]

the rear wheels are wider sporty pretensions and all that.

 

[RYM]

Have a look in this guide for the correct size tyre for use with 19" wheels:thumbsup

http://www.rtecalloywheels.co.uk/fitment_guide.htm

235/40 19 Front

265/35 19 Rear

A 255 on the front will tram line really badly.

Staggered wheels offer the option of using a wider tyre which enables greater traction on the axle that is being driven:thumbsup

Remember also that the 5 series is very sensitive to steering issues. Some 5 series owners in the past have experienced steering wheel vibration when increasing the size of the wheel:thumbsup

 

[Gazza600]

Thanks very much for all your replies fellas but I was actually referring to the difference in tyre profile difference between the fronts and rears. Ie 235/40/19 and 265/35/19... Why are the fronts 40's and the rears 35's?

 

[Deano16v]

because the wheels are wider. the second number is a percentage of the first to give the sidewall height. 40% of 235 and 35% of 265 gives you the same rolling radius more or less

 

[Gazza600]

That's magic mate and clears that one right up!
I always assumed sidewall depth was just a fixed figure and not related to anything.
Many thanks!

Gaz

 

[Dav Rai]

Thanks for that guys, i posted a similar question on the US forum and they replied that the sizes i initially posted were ok based on my wheels:

Breyton Magic Racing / 19" x 9" All round / ET20

Little confused!

On the whole i am looking to make sure i dont get many handling issues, vibrations and rubbing.