That entire car is a GREAT deal! I got the car for 6000.. only has 75000 miles on it, and I bought the wheels for 500. They had new tires on them bc they came directly off a newly bought 2005 civic. I guess I'm not concerned by the speed being thrown off. 1-2 mph isn't enough to go buy new tires..

 

I'll just go faster!!!! LOL!

 

No reason to go buy new tires...but better to know so you don't get pulled over doing 2 more mph than you thought you were doing :hsdunno:

 

Nevermind the fact that it throws off the drive ratios of the drive train, potentially hindering performance or fuel consumption.

 

For what it's worth, the 15" wheels you put on the car from the 2005 Civic have 195mm-60R15 tires, while the 2000 Civics with 15" wheels have 195mm-55R15 tires. I put 99-00 Si wheels on my 2000 EX.

The new tire/wheel unit is 19.5mm larger in diameter than the 2000 Civic 15" wheel/tire unit. So if you do the math, then at 62.1 mph (100 km/h), your speedometer will display 60 mph (assuming it displayed exactly 62 at 62 mph), because the tire is spinning slightly slower.

 

I've seen a couple threads on this topic and not once has that been brought up...but I don't doubt it would cause other problems.