all my testing was street tires on the street, as i was checking ratios, and limp mode ,like what you ask,,
always my drag radials and drag slicks were 255/50-16 and is 10.0 wide and 26.0 tall. the drag slicks ,with radials on the front ,,,don't do it ,makes the car wonder, and at 130 that is one of the last things you want., My street tires are hankook 275/35-19 at 26.6 tall,, a lot of people run 285/35-19 --26.9 tall street. the only thing i found in a 25.68 is a 245/50-16 which is 25.7 tall but only is 9.6 wide.
here is nitto website I found a 245/ 50 16 is 9.6 wide,, 4.8 sidewall,,25.7 tall
NITTO Extreme Performance NT555R Drag Radial - 245/50-16


here is from Micky thompson which is what I use. M T website
90000000996 3793R P255/50R16 26 X 10.50R16






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