Downgrading wheel and tyre size

FreddieFrugal

stator wrote: »

There are tyre size calculators available online that will tell you if it will cause problems with the spedo and odometer.
As long as you go for OEM wheels available for that precise model you should be ok.

The tires listed for pressures on the inside of car door are the same that come up when you put my car reg into a tyre buying website. It brings up two options 205 55 r16 or 205 50 r17 (the ones currently on the car)

alderpoint

As both sizes are listed on the car door sticker then either size is "original" and so changing is not a modification and there is no need to inform your insurer.

gabitzul

Ex Focus MK 2 (55 reg) owner here.

I did exactly the same - "downgraded" to the standard wheels on the Sport/Ghia - 205/55/16.

No issues whatsoever as they are standard factory fit as well.

Go for it.

Strider590

Try

http://www.willtheyfit.com/index.php?width=205&aspect=55&diameter=16&wheelwidth=9&offset=20&width2=205&aspect2=50&diameter2=17&wheelwidth2=9&offset2=20#content

That will show you any speed difference between the sizes.

Don't worry about offset if you don't know it, that's really only for when your fitting after market alloy wheels.

Minrich

Will you ever replace the tyres again before you sell the car ? How many miles you do per annum is also important , i have had around 35 cars in my life but only replace tyres on two or three of them.

neilmcl

alderpoint wrote: »

As both sizes are listed on the car door sticker then either size is "original" and so changing is not a modification and there is no need to inform your insurer.

Only if the OP fits OEM alloy wheels.

Johno100

Minrich wrote: »

Will you ever replace the tyres again before you sell the car ? How many miles you do per annum is also important , i have had around 35 cars in my life but only replace tyres on two or three of them.

Wow, you get through cars quicker than some of my mates get through girlfriends and that's saying something.:D

FreddieFrugal

neilmcl wrote: »

Only if the OP fits OEM alloy wheels.

I'm buying proper ford alloys that someone no longer needs from their focus (had winter tyres on)

Iceweasel

IanRi wrote: »

I'm buying proper ford alloys that someone no longer needs from their focus (had winter tyres on)

You shouldn't have any bother then.

If you can keep your 17" wheels till nearer wintertime - you'll be able to sell them to someone who wants them for 17" winters.

bigjl

The tyre size for 16" wheels is likely listed in the Handbook.

I doubt you need to tell the Insurance company as you are not modifying the car, the caveat being you fit Ford Focus 16" wheels.

I reckon the size you want will be 205/55/16 or 215/55/16 both are pretty common.

A set of four in a decent make will likely be nearly the same price as the 205/50/17

Add in the cost of the wheels and I can't see the point,