Join Date: Jul 2015
Location: Atlanta area, GA
Thanked 6 Times in 4 Posts
I have a 2015 Sport with the 18 inch rims/tires. I bought a set of 16 inch rims from a 2015 LX on Craigs List with the 205/65 - 16 Firestone Affinity Tires; the Firestones were likely the tires on your 2014 LX, duoexo. Yes, the fuel economy is much better with the 16 inch tires. The 16 inch rims will not fit on a 2016 or 2017 Accord other than the LX which still rides on the 16 inch rims. The best you can do is look on craigs list, ebay, or go for after market rims and fit your car with the the 17 inch rims from an EX or other version with 17 inch rims/tires. You are describing a 14% difference between cars (70/490). I see approximately a 7 - 10 % difference between the 18 and 16 inch tires in highway driving. Your Sport is riding on the 19 inch rims/tires. The 16 inch tires are narrower for less wind resistance; the tires and rims are lighter; the Firestone Affinity tires are designed to maximize fuel efficiency by lowering rolling resistance.
Addendum:Of course, if you are trading every 3 years it is not worth it. I posted the info for others reading the thread in case they are longer term owners.
'15 Accord Sport Black 6-Speed MT
Last edited by X72; 04-18-2017 at 05:43 PM.