Maximize the amount of performance
As pointed out in the NT555 G2: The Legacy Continues
video, the block sizes are larger on the tread pattern for any size 275mm & wider to help maximize power to the ground. On the flip side of that, Nitto optimized any size 265mm & narrower to enhance the driving experience, controllability, steering response and brake distance.
Here are a few images showing the difference in tread block size:
265/35R-20 Nitto NT555G2
305/30R-20 Nitto NT555 G2
Side by Side (305 on the left | 265 on the right)
Last edited by Discount Tire; 01-21-2016 at 12:30 PM.