The Discoverer STT PRO  is the most extreme all-season, off-road tire Cooper® offers to date, providing remarkable off-road performance without sacrificing on-road traction.

  • Tread design helps to prevent stone retention
  • Armor Tek3 Construction for added tire durability
  • The shoulder of the tire was designed with soft surface "cleats" and mud "scoops"

M+S Rated

Additional information


Wheel Type


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Click on a size in the dropdown below to request a quote:

Sizes & Specifications

Size Speed / Load
30/9.5R15 104Q
31/10.5R15 109Q
32/11.5R15 113Q
33/12.5R15 108Q
35/12.5R15 113Q
35/12.5R20 121Q
35/12.5R22 117Q
35/13.5R20 122Q
37/12.5R17 124Q
37/12.5R20 126Q
37/13.5R17 121Q
37/13.5R18 124Q
37/13.5R20 127Q
37/13.5R22 123Q
38/13.5R20 123Q
38/15.5R18 128Q
38/15.5R20 128Q
40/13.5R17 121Q
215/85R16 115/112Q
225/75R16 115/112Q
235/85R16 120/116Q
245/75R16 120/116Q
255/75R17 111/108Q
265/70R17 121/118Q
265/75R16 123/120Q
275/65R18 123/120Q
275/65R20 126/123Q
275/70R18 125/122P
285/65R18 125/122Q
285/70R17 121/118Q
285/75R16 126/123Q
295/55R20 123/120Q
295/60R20 126/123Q
295/65R20 129/126Q
295/70R17 121/118Q
295/70R18 129/126P
305/55R20 121/118Q
305/60R18 121/118Q
305/65R17 121/118Q
305/70R16 124/121Q
305/70R18 126/123Q
315/70R17 121/118Q
315/75R16 127/124Q
325/50R22 122Q
325/50R22 127/124Q
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