Spare Tire Scenario

bennye90 · 08-08-2017, 09:42 AM

If I have 225/40/18 (front) and 255/35/18 (rear) and I blow a flat on one of the tires. Would I possibly be able to run a spare for a short drive home // to the tire shop?

A spare such as 205/55/16 and going no more than 60km/h going a short distance for repair/replacement.

225/40/18 vs 205/55/16 = 0.8% rolling diff.
255/35/18 vs 205/55/16 = 0.4% rolling diff.

Running on xdrive!

I am just curious if it is possible. Or is the only resort is a tow truck?

feuer · 08-08-2017, 10:13 AM

Anything within 1% is OK.

floydarogers · 08-08-2017, 02:08 PM

Quote:

Originally Posted by bennye90

If I have 225/40/18 (front) and 255/35/18 (rear) and I blow a flat on one of the tires. Would I possibly be able to run a spare for a short drive home // to the tire shop?

A spare such as 205/55/16 and going no more than 60km/h going a short distance for repair/replacement.

225/40/18 vs 205/55/16 = 0.8% rolling diff.
255/35/18 vs 205/55/16 = 0.4% rolling diff.

Running on xdrive!

I am just curious if it is possible. Or is the only resort is a tow truck?

As long as the 16" wheel clears your brakes, it should be fine.

08-08-2017, 09:42 AM	#1
bennye90 Private First Class 41 Rep 108 Posts Drives: E90 328xi Join Date: Mar 2017 Location: Toronto iTrader: (0)	Spare Tire Scenario If I have 225/40/18 (front) and 255/35/18 (rear) and I blow a flat on one of the tires. Would I possibly be able to run a spare for a short drive home // to the tire shop? A spare such as 205/55/16 and going no more than 60km/h going a short distance for repair/replacement. 225/40/18 vs 205/55/16 = 0.8% rolling diff. 255/35/18 vs 205/55/16 = 0.4% rolling diff. Running on xdrive! I am just curious if it is possible. Or is the only resort is a tow truck?
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08-08-2017, 10:13 AM	#2
feuer Major General 4276 Rep 9,206 Posts Drives: wife crazy! Join Date: Apr 2015 Location: Chicago, IL iTrader: (5)	Anything within 1% is OK.
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