TreadGrade

Sumitomo

73 tire lines and 169 grade rows in the NHTSA ratings file. Treadwear spans 160–800.

About this data

These are rows in NHTSA's ratings list, under the brand string that list stores. The list does not say whether a tire is still sold, and it has no category field. Light-truck tires, deep-tread winter-type snow tires, and temporary spare tires are outside the UTQG rule, so a missing line is not a grade. Sorting these rows is an ordering of NHTSA's list, not a ranking of the best tire. Data last verified October 21, 2026 (UTC). Data-quality notes.

Sumitomo tire lines
Tire line Size rows Treadwear Traction Temperature
BC100 (T rating) 1 300 B B
BC20 (H rating) 1 400 B A
BC20 (T rating) 1 400 B B
CUV 23 560 A A
Duration 1 440 A B
ECHELON ULTRA LST (T rated) 1 680 A A
ECHELON ULTRA LSV (V rated) 1 500 A A
ENCOUNTER AT 1 660 A B
ENCOUNTER HT ("H" rated) 1 600 A A
ENCOUNTER HT ("T" rated) 1 600 A B
ENCOUNTER HT (M version - H,V rated) 1 400 B A
ENCOUNTER HT (M version - T rated) 1 400 B B
ENCOUNTER HT2 (H and V rating) 1 640 A A
ENCOUNTER HT2 (T rating) 1 640 A B
HTR 4 1 320 A A
HTR A/S P01 3 360–480 AAA A
HTR A/S P02 ("H" and "V" rated) 1 600 A A
HTR A/S P02 ("W" rated) 1 500 A A
HTR A/S P03 (H and V rating) 1 640 A A
HTR A/S P03 (W rating) 1 540 A A
HTR ENHANCE C/X 2 440–600 A A
HTR ENHANCE C/X "H,V" 1 600 A A
HTR ENHANCE C/X "T" 1 600 A B
HTR ENHANCE CUV (H rating) 2 600–680 A A
HTR ENHANCE CUV (T rating) 1 600 A B
HTR ENHANCE CUV (V and W rating) 1 600 A A
HTR ENHANCE CX2 10 600–680 A AB
HTR ENHANCE L/X 6 440 A A
HTR ENHANCE L/X "H, V" (standard load) 1 600 A A
HTR ENHANCE L/X "T" (standard load) 1 700 A B
HTR ENHANCE L/X "W" (standard load) 1 440 A A
HTR ENHANCE L/X XL (extra load) 1 440 A A
HTR Enhance LX2 (H-rating) 1 700 A A
HTR Enhance LX2 (T-rating) 1 800 A B
HTR Enhance LX2 (V-rated sizes) 1 660 A A
HTR ENHANCE WX2 1 500 A A
HTR SPORT H/P 1 480 A A
HTR T4 2 520–560 A B
HTR Z5 2 320 AAA A
HTR ZII 1 360 A A
HTR ZIII 1 300 AA A
HTR50Z 1 160 A A
HTR900 1 380 B A
Mach 1 R201 35 500 A A
Mach 2 R301 9 500 A A
NATIONAL TOURING A/S (H and V rating) 1 440 A A
NATIONAL TOURING A/S (S and T rating) 1 440 A B
Radial SUV 2 400 A B
TELSTAR RADIAL SUV P-metric 1 460 A B
Tempra Duration (Metric) 1 360 A B
Tempra Duration 55/65 series 1 520 A B
Tempra Duration 70/75/80 series 1 440 A B
Tempra ESQUIRE 1 340 B B
Tempra GT 1 440 A B
Tempra GT 50 series 1 440 A C
Tempra Touring HR 1 420 A A
Tempra Touring TR 1 620 A B
Tour Plus LSH 1 600 A A
TOUR PLUS LSH (H rated) 1 540 A A
TOUR PLUS LSV (V rated) 1 500 A A
Touring HR 7 420–440 A A
TOURING LXH 2 440 A A
TOURING SR 1 440 A B
Touring SUV 3 520 A B
Touring TR 3 420–620 A AB
TOURING VR 1 440 A A
TRAILBOSS A/T P-METRIC 1 500 A B
Trailcutter A/T 1 500 A B
Trailcutter AT 1 500 A B
TURBOSTAR GT 50/60/65/70 series 1 440 A B
TURBOSTAR HT 1 520 A B
TURBOSTAR HTR 1 500 A B
WEATHERIZER T/P 50/60/65/70/75 series 1 420 A B

Search all brands