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Author Topic:   205/40R16 currently on car, need to replace 2, can I use different size?
posted December 16, 1999 12:19 PM           Edit/Delete Message Reply w/Quote
My girlfriend's 93 Nissan NX2000 currently has 205/40R16 tires on her car. She recently found out that one of the rear tires has a hole in it and is NOT repairable. I know you're supposed to replace a pair of tires at a time, but I'm wondering if she can replace her 2 rear tires with 2 tires of a different size? For instance, I was thinking of 205/50R16 since a 40 series tire limits her options as what kinds of tires she can buy.

In conclusion:
Is there a problem mixing a pair of 205/40R16 tires with a pair of 205/50R16 tires on the same car?

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posted December 16, 1999 02:25 PM           Edit/Delete Message Reply w/Quote
I contemplated this when I found a cheap pair of used snow tires last year. I decided against it.

1. It will screw up the speedometer/odometer
2. It may confuse the ABS system, if the car has it.
3. It may screw up the handling. Different treads and tires front and back. Different weight distribution than how the car was designed.

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Tom S
posted December 29, 1999 01:53 AM           Edit/Delete Message Reply w/Quote
Well, the 50 series tires will be taller by an inch or so. I'm unfamiliar with that oddity of a car (NX2000). I've maybe only seen one ever. If the rear tires are the drive wheels, the taller tires will screw up the speedometer a little bit (make it read slower by about .3 mph for every 10). If it's a front wheel drive the tall back tires should be fine. Also, make sure there is enough room in the wheel well for a taller tire! If not, it could rub and cause damage. Concerning ABS, I don't really know, and can't think why it would screw up. So that's all I know. Hope it helped.


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