07 Accord EX-L V6 6MT
Join Date: Oct 2007
location: Baton Rouge, LA
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NOT a good idea. Your car should have come with a v-rated tire and those Destinys are t-rated. The handling is going to be vastly different and not properly matched to the vehicle.
That speed rating doesn't just give you the top speed the tire can go: higher speed rated tires have softer rubber compounds that also affect handling. You should never go more than one speed rating below what came on the car from the factory. In your case, an h-rated tire would be the minimum. In fact, any professional shop should should refuse to mount them on that vehicle. It's a big legal liability for them to do something like that.
The size difference isn't a big concern. That 205/60/16 has an overall diameter of 25.685" while the 215/60/16 has an overall diameter of 26.157". Your speedo will be off by about 1.18% (when driving 60MPH it'll read 61MPH.)
If you're going for more performance, you're better off staying with a v-rated 205 than the t-rated 215. Even an h-rated 205 would most likely out handle and out grip a t-rated 215 tire.
BTW, a 225/55/16 is an almost perfect match (0.2% difference) for the 205/60/16. Might be something to consider if you're set on wider tires, but stick with an H or higher rating. A lot of 7th gen owners are switching the 215/50/17s to 225/50/17s without any issues like rubbing. I'll be running 225/45/17 Dunlop Direzza Sport Z1s for autocross next season.
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