Tyres.

tom_tarbucket

I have an e60 2006 523i

The tyres on it now are 225 / 50 / 17

Could these simply be swapped for a tyre size like : 225 / 55 / 16

OR would work have to be done to allow the 16 inch one to fit ?

Superman9313

What are you trying to do get the stretched look is it, or you just want to know in general?

tom_tarbucket

Superman9313 wrote: »

What are you trying to do get the stretched look is it, or you just want to know in general?

Bit of both

Superman9313

The tyres on it now are 225 / 50 / 17

If you want a stretch then drop by about 20-30 so you'd have a 205/50/17 or a 195/50/17 .. ive never heard of anyone putting a smaller diameter tyre on a bigger alloy tho, not sayin it cant be done tho haha just have never heard of that..

tom_tarbucket

Superman9313 wrote: »

The tyres on it now are 225 / 50 / 17

If you want a stretch then drop by about 20-30 so you'd have a 205/50/17 or a 195/50/17 .. ive never heard of anyone putting a smaller diameter tyre on a bigger alloy tho, not sayin it cant be done tho haha just have never heard of that..

Thanks. Could I change to 225 / 55 / 17 ?

Superman9313

Yep far as I know ya can anyway cos its still a 17inch rim.. have a look on tyre stretch.com to see what look ya prefer, just select the size tyre and fitment your lookin for

Paddy@CIRL

A 225/55/17 is a tyre with a higher profile than a 225/50/17. You can't put a 16" tyre on a 17" rim.

You would need to change the complete wheel if you wanted to run a 16". I don't even know if a 16" would fit on an E60?

Just to help you OP, in your example of 225/50/17 - 225 is the width of the tyre, 50 is the height / profile (calculated as a percentage of the width) and 17 is the wheel size.

tom_tarbucket

Thanks all.

Ok so let's forget about the 16 inch stuff.

Current tyres are : 225 / 50 / 17

Could I change to 225 / 55 / 17 ?

Kenny Logins

tom_tarbucket wrote: »

Thanks all.

Ok so let's forget about the 26 inch stuff.

Current tyres are : 225 / 50 / 17

Could I change to 225 / 55 / 17 ?

Yeah, but they'll have a taller sidewall (by 5% of 225mm)

Paddy@CIRL

tom_tarbucket wrote: »

Thanks all.

Ok so let's forget about the 26 inch stuff.

Current tyres are : 225 / 50 / 17

Could I change to 225 / 55 / 17 ?

You could but you're better off sticking with the manufacturer's recommended tyre sizes. Even with that small of a change, you would be throwing your speedometer out by around 3%. You'd also be losing around 11mm of clearance in your wheel arch, which might cause some rubbing issues under compression.

BMW's recommended tyre sizes and pressures are located on a label near the driver's side B-pillar

Bruthal

Superman9313 wrote: »

The tyres on it now are 225 / 50 / 17

If you want a stretch then drop by about 20-30 so you'd have a 205/50/17 or a 195/50/17 .. ive never heard of anyone putting a smaller diameter tyre on a bigger alloy tho, not sayin it cant be done tho haha just have never heard of that..

The 17 inch is the rim diameter, rather than tyre outside diameter. So a smaller tyre diameter can't go on it.

tom_tarbucket

Paddy@CIRL wrote: »

You could but you're better off sticking with the manufacturer's recommended tyre sizes. Even with that small of a change, you would be throwing your speedometer out by around 3%. You'd also be losing around 11mm of clearance in your wheel arch, which might cause some rubbing issues under compression.

BMW's recommended tyre sizes and pressures are located on a label near the driver's side B-pillar

Good reply and excellent point about the clearance in the wheel arches. Will check that out later.

tom_tarbucket

Superman9313 wrote: »

Yep far as I know ya can anyway cos its still a 17inch rim.. have a look on tyre stretch.com to see what look ya prefer, just select the size tyre and fitment your lookin for

Apologies, I answered a question above and didn't even know what it was.

Even after look at tyre stretch .com, I dont know what it is !!

what is tyre stretching ?

bazz26

OP, why are you looking to change tyre size? Cost? Availability?

tom_tarbucket

bazz26 wrote: »

OP, why are you looking to change tyre size? Cost? Availability?

kinda more so comfort

tom_tarbucket

Paddy@CIRL wrote: »

You could but you're better off sticking with the manufacturer's recommended tyre sizes. Even with that small of a change, you would be throwing your speedometer out by around 3%. You'd also be losing around 11mm of clearance in your wheel arch, which might cause some rubbing issues under compression.

BMW's recommended tyre sizes and pressures are located on a label near the driver's side B-pillar

I took a picture of the label near the driver's side B-pillar. its attached

dont understand it though.........thicko

it just has a load of different tyre sizes

Paddy@CIRL

tom_tarbucket wrote: »

kinda more so comfort

Is the car an M Sport model? The M Sport specification is stiffer than the SE spec. You're going to be quite limited in what you can do to increase the comfort levels, maybe dump the Runflat tyres if it's still on them?

tom_tarbucket wrote: »

I took a picture of the label near the driver's side B-pillar. its attached

dont understand it though.........thicko

it just has a load of different tyre sizes

Basically a 225/50 and 245/45 would be the recommended standard tyre sizes (front & rear respectively) for stock 17" wheels. That label is basically giving you the correct pressures that you should be using depending on what weight is in the car.

tom_tarbucket

Paddy@CIRL wrote: »

Is the car an M Sport model? The M Sport specification is stiffer than the SE spec. You're going to be quite limited in what you can do to increase the comfort levels, maybe dump the Runflat tyres if it's still on them?



Basically a 225/50 and 245/45 would be the recommended standard tyre sizes (front & rear respectively) for stock 17" wheels. That label is basically giving you the correct pressures that you should be using depending on what weight is in the car.

No the car is SE, and yeah im thinking of dumping the run flats.

Right, at the moment, my car has 225 / 50 / 17 on all 4 wheels, are you saying this is wrong and that there should be 245 / 45 / 17 on the back ?

if so, fook !!

veetwin

tom_tarbucket wrote: »

No the car is SE, and yeah im thinking of dumping the run flats.

Right, at the moment, my car has 225 / 50 / 17 on all 4 wheels, are you saying this is wrong and that there should be 245 / 45 / 17 on the back ?

if so, fook !!

Definitely dump the run flats. I did it recently and the difference is huge. The car rides so much nicer and quieter. Tyres are way cheaper also. I should have done it years ago.

FWIW my E61 SE has 225/50/17 all round and that's the way it came from Munich.

tom_tarbucket

Good to know veetwin and also good to know you are happy with standard tyres.
Also a big relief to know that your on 225 / 50 / 17 all round.

Now to my next question , can anyone recommend me 4 x 225 / 50 / 17 STANDARD tyres for a 2006 523i automatic.

I've had a look around myself but there are so many bloody tyres out there. My mileage is low, only 6000 miles a year, a lot of city driving. I'm not a fast driver.

Most important thing is budget. My budget is 90 Euro per tyre. ( some may laugh at this )

AugustusMinimus

THis thread is confusing me a bit.

My car for instance takes 225/55 16 tyres.

Can I switch to a wider tyre if I wanted. I thought the tyre width would be linked to the width of the rim ?

tom_tarbucket

veetwin wrote: »

Definitely dump the run flats. I did it recently and the difference is huge. The car rides so much nicer and quieter. Tyres are way cheaper also. I should have done it years ago.

FWIW my E61 SE has 225/50/17 all round and that's the way it came from Munich.

What exact tyres did you go for and how much were they ?

veetwin

tom_tarbucket wrote: »

What exact tyres did you go for and how much were they ?

I got Semperit Speedlifes. They were €500 for 4 fitted and balanced by McManus Tyres, Drogheda. I just could not put Chinese crap on my car.

Just checked on Camskill.co.uk where they are £90 before delivery and then you need to find a fitter so it was good value.

tom_tarbucket

veetwin wrote: »

I got Semperit Speedlites. They were €500 for 4 fitted and balanced by McManus Tyres, Drogheda. I just could not put Chinese crap on my car.

Thanks.

Get ya. I just want to spend about 90 quid a tyre though.

Superman9313

Bruthal wrote: »

The 17 inch is the rim diameter, rather than tyre outside diameter. So a smaller tyre diameter can't go on it.

Yeah i know that its 2 different diameters nd it wouldnt be recommended doin something like that but yad never know what some people would try now a days haha

tom_tarbucket

tom_tarbucket wrote: »

I took a picture of the label near the driver's side B-pillar. its attached

dont understand it though.........thicko

it just has a load of different tyre sizes

I still don't know what this picture means, Would I be ok to put "V" speed rated tyres on my E 60 ?

AugustusMinimus

Can 245/50 R16 tyres be fitted on a 225/55 R16 recommend car ?

Any benefits in going for the wider tyre ? Any drawbacks ?

veetwin

tom_tarbucket wrote: »

I still don't know what this picture means, Would I be ok to put "V" speed rated tyres on my E 60 ?

Unless you plan on going over 240kmph V rated tyres are fine.

tom_tarbucket

veetwin wrote: »

Unless you plan on going over 240kmph V rated tyres are fine.

I read about it there. This is from a website :

" The speed rating code is made up of either one or two letters, or one letter and one number. It indicates the maximum permitted speed that the tire can sustain for a ten minute endurance without being in danger. "

I am thinking about getting the V speed index which as you say is 240 kmph. so I think I should be fine. im not going to be at 240 kmph for 10 seconds not to mind 10 minutes.

However, the tyres I am fitting are 225 / 50 / 17 and I think the the label below ( which is from my car ) seems to suggest that for a tyre size of 225 / 50 / 17 that I should get a speed index of W ( W = 270 kmph )

Confused