Got the R888 on today. Very happy with the results. Seeing that I don't make the big twin screw HP I put 275 tires on my car. With the tires cold I went for a test drive. From about a 10 mph roll they hooked with no hop or spin at 30 psi. They are about a inch wider than the DR555 which I am happy about I never liked the narrow look of the DR555s.