Southern PA | Angus8335 - 9/19/2025 10:20
Have a 2016 389 with 475 HP, 18 speed that has low pro 22.5 tires. Will it make much difference if I replace all of them with 11 R 22.5. Will the speed read much slower than its going? any other changes I'm not thinking of ? TIA ... Dennis
There are different sizes of low pro 22.5 tires. If you have the common 295/75 R 22.5, going to an 11 R 22.5 will only increase your speed about 3%. Check the tire charts for revs per mile for whatever you want to run, and do the math.
Like DBINDIANA said, you can change your speedometer to read correctly for various tire sizes and/or rear end ratios. |