Them Tyre sizes

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Them Tyre sizes

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Anonymous

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Just been to Halfords about those tyres!
They have said that 195/45/15 will throw my speedo out! Will this be a major problem???

They said I needed 195/50/15
 
Thanks Tom, is it a major problem though? I thought I read recently that it will put speedo out by 1mph??
Will it **** the car in any way??
Thanks
 
Wont knacker the car but will give u incorrect readings on your milometer and speedometer. Mine's out. Use the tyre/speed calculator on the bravo-guide to check how much it will be out.

I have 195/50/15's on mine which actually have a smaller diameter than the standard tyres on my model
 
ok, assuming you already had 175/65/14's on, then yeah you wanted 195/15/15

The size they recommended would still be out, but only by -1.2%

The size you have is actually -4.7% out. So your speedo will actually read 4.7% too fast.

This means that, when your speedo is saying you are doing 60MPH, you are actually only doing 57.3%. I wouldn't worry about it, but if you need to replace the tyres, you MUST replace them in pairs to change to the correct size.

Also, I am told it may afect your braking a little if you have the wrong tyres on...
 
Does that mean my milometer will add more miles on than I have really done?? So if a had done 57.3 miles it would actually put 60 miles onto the cars total mileage??

Thanks to you all for your helpful comments by the way!!
 
actually, that should say 57.3MPH, not %... And of course, for every 1000 miles you drive, your counter will add 1047... not a HUGE error mind you
 

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