This is the archive page for etyres’ NHTSA Tyre Ratings. These NHTSA pages contain historical data which may no longer be accurate.
NHTSA Tyre Ratings – Explanation of Traction Ratings
Traction grades are an indication of a tyre’s ability to stop on wet pavement. A higher graded tyre should allow a car to stop on wet roads in a shorter distance than a tyre with a lower grade. Traction is graded from highest to lowest as “AA”, “A”, “B”, and “C”.
Of current tyres:
3% are rated “AA”
75% are rated “A”
22% are rated “B”
only 1 line of tyres rated “C”