Bought the wrong tyre size, can I use them?

[Dr House]

I some how order the wrong size tyres for a 5 GT, I was supposed to get 245 40 20 but I ordered 245 45 20

http://www.tyreleader.co.uk/car-tyres/goodyear/eagle-f1-supercar/245-45-zr20-99y-40313

I was just about to send them back but thought I would ask here just incase they will fit ok?

 

[breadturbo]

It's an extra 25mm ish diameter, will that clear the arches?

 

[lordrobs]

Did you buy all 4 or just a pair?

 

[Dr House]

front pair, rears are wider.

 

[hartgeh3]

should be ok, i know someone with 245/40 fronts and 275/35 rears

 

[lordrobs]

front pair, rears are wider.

I guess the question in that case is whether a 3.4% difference in rolling radius will screw up the ABS/EBD etc. Personally if they'll take them back I'd just get a refund.

 

[Clarkey]

Isn't this car 4wd too?

 

[shauncr91]

If it were my car my main concern would the actual looks of having two different profile tyres, even just going from 40 to 45 has a large visual affect.

 

[Kaeo]

As long as the car isn't 4wd there wont be any issue. As always, use a sat nav to work out your real velocity vs your speedo.

 

[ajf]

I know this is probably daft but what car is it?
5 GT doesn't ring any bells - other than Renault

 

[Akagi]

I know this is probably daft but what car is it?
5 GT doesn't ring any bells - other than Renault

BMW 5 Series GT.

 

[ajf]

Ah, forgot about that.
I was expecting a sports model as it was 20" tyres and the rears being bigger.

 

[snapdragon69]

I'd be worried abut ESB/ABS problems.

 

[Fr0dders]

get them on ebay. and try and get as much of your money back as possible then order the correct pair.

Because the profile is higher your wheels are effectively 3.4 % larger than they should be, this can lead to your speedo being out since a complete revolution takes slightly longer than its supposed to etc.. As mentioned above it could possibly lead to abs sensors getting confused and possibly turning off ABS as a precuation.

Its not worth risking it imo when they are this wrong.

 

[Diagro]

get them on ebay. and try and get as much of your money back as possible then order the correct pair.

Because the profile is higher your wheels are effectively 3.4 % larger than they should be, this can lead to your speedo being out since a complete revolution takes slightly longer than its supposed to etc.. As mentioned above it could possibly lead to abs sensors getting confused and possibly turning off ABS as a precuation.

Its not worth risking it imo when they are this wrong.

Eh???

EH????

what you been smoking?

I have had 15" 16" 195/40 195/55 tyres on my car and the speedo is never out as it's read from the gearbox.

 

[MagicBoy]

I guess the question in that case is whether a 3.4% difference in rolling radius will screw up the ABS/EBD etc. Personally if they'll take them back I'd just get a refund.

This.

 

[Clarkey]

Eh???

EH????

what you been smoking?

I have had 15" 16" 195/40 195/55 tyres on my car and the speedo is never out as it's read from the gearbox.

Think about what you just said.

 

[mattyg]

If it were my car my main concern would the actual looks of having two different profile tyres, even just going from 40 to 45 has a large visual affect.

Safety would be my main concern with looks being way way down the list.

depending on tyre width there could be zero difference between 40-45 profile

 

[mattyg]

Eh???

EH????

what you been smoking?

I have had 15" 16" 195/40 195/55 tyres on my car and the speedo is never out as it's read from the gearbox.

Lol....wait for it.....wait for it....wait for it.

 

[Diagro]

Lol....wait for it.....wait for it....wait for it.

Im a noob who just woke up.