A right tyre size is not only important for great trip quality, however also affects fuel economy and refinement.Published On Mar 12, 2023 09:00:00 AMIs it recommended to upgrade the tires of my 2012 model Honda City from 175/65 R15 to 185/55 R16? Would it decrease fuel efficiency?Harshit Singh, VascoAutocar India says: Upgrading from 175/65 R15 to the 185/55 R16 will not make any distinction to the trip height as the overall diameter for both sizes is the exact same. The boost in width of the tire from 175mm to 185mm will enhance handling marginally. There would be minimal change in fuel efficiency, and it would depend on the wheel rims and tire assembly you decide for.Also see: Honda City finishes 25 years in IndiaHonda City facelift launched at Rs 11.49 lakhHonda City facelift review: ADAS at your serviceCopyright (c) Autocar India. All rights scheduled.