Originally Posted by RJEV
My question is will using one of the optional tires adversely effect the angle of the tow bar or cause me any problems towing the car?
Going from 195/60R16 to 205/55R16 is going from 4 choices among 3 brands to over 150 choices among 14 brands at TireRack.com. I'm a Michelin fan, and Michelin has 22 different tires available in size 205/55R16 at TireRack.
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The specs show the 205/55 is 0.4 inch shorter and a hair wider than the 195/60, so it will lower the front of the car about two tenths of an inch. That shouldn't be enough to affect your tow bar.
You care about diameter of the tire, but the accurate way to measure the impact on your drivetrain is use the specs to find out the tire revolutions per mile (revs/mile), and compare.
195/60R16 has 823 revs/mile. 205/55R16 has 836. 836 revs/mile minus 823 = 13. 13 divided by 823 = 1.58 percent difference. Therefore, your speedo will be different by 1.58 percent, or about one MPH at highway speeds.
So if you want more choice of brands and tread with minimal impact on the performance of the vehicle,, then go to size 205/55R16.