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Cooper Discoverer ST MAXX

Cooper Discoverer ST MAXX
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Discoverer ST MAXX
All Terrain - Studdable

The Cooper Discoverer ST MAXX is an all season studable tire intended for use on SUVs and trucks. They are designed with an aggressive tread compound that can handle tough terrains including off road and excellent traction in snowy and icy conditions. Discoverer ST MAXX tires offer low road noise while providing great handling and control.
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Cooper Discoverer ST MAXX Tire Specs Chart

Size Diameter Width Rim
Range
Measured
Rim
Tread
Depth
Load
Range
Max
Load
Max
psi
Weight Revs/Mile
LT 235/75R15
104/101Q C BSW
28.9" 9.3" 6-7" 6.5" 18/32" C 1985/1819 lbs 50 psi 42 lbs 720 Show Specs
LT 30X9.50R15
104Q C BSW
29.7" 9.3" 6.5-8.5" 7.5" 18.5/32" C 1985 lbs 50 psi 44 lbs 700 Show Specs
LT 31X10.50R15
109Q C BSW
30.75" 10.7" 7-9" 8.5" 18.5/32" C 2270 lbs 50 psi 49 lbs 676 Show Specs
LT 33X12.50R15
108Q C BSW
32.76" 12.6" 8.5-11" 10" 18.5/32" C 2205 lbs 35 psi 60 lbs 634 Show Specs
LT 35X12.50R15
113Q C BSW
34.45" 12.2" 8.5-11" 10" 18.5/32" C 2535 lbs 35 psi 67 lbs 602 Show Specs
LT 215/85R16
115/112Q E BSW
30.31" 8.4" 5.5-7" 6" 15/32" E 2680 lbs 80 psi 45 lbs 684 Show Specs
LT 225/75R16
115/112Q E BSW
29.49" 8.9" 6-7" 6" 18.5/32" E 2680 lbs 80 psi 44 lbs 705 Show Specs
LT 235/85R16
120/116Q E BSW
31.97" 9.25" 6-7.5" 6.5" 18.5/32" E 3042 lbs 80 psi 49 lbs 650 Show Specs
LT 245/70R16
118/115Q E BSW
29.53" 9.8" 6.5-7.5" 7" 18.5/32" E 2910/2680 lbs 80 psi 47 lbs 704 Show Specs
LT 245/75R16
120/116Q E BSW
30.67" 9.7" 6.5-8" 7" 18.5/32" E 3042 lbs 80 psi 47 lbs 678 Show Specs
LT 255/85R16
123/120Q E BSW
32.8" 10.2" 6.5-8" 7" 18.5/32" E 3415 lbs 80 psi 59 lbs 632 Show Specs
LT 265/70R16
121/118Q E BSW
30.87" 10.9" 7-8.5" 8" 18.5/32" E 3195/2910 lbs 80 psi 54 lbs 673 Show Specs
LT 265/75R16
123/120Q E OWL
32.01" 10.5" 7-8" 7.5" 18.5/32" E 3415/3085 lbs 80 psi 54 lbs 650 Show Specs
LT 285/75R16
126/123Q E OWL
32.91" 11.7" 7.5-9" 8" 18.5/32" E 3750 lbs 80 psi 64 lbs 632 Show Specs
LT 305/70R16
124/121Q E BSW
33.07" 12" 8-9.5" 9.5" 18.5/32" E 3525 lbs 65 psi 65 lbs 629 Show Specs
LT 315/75R16
127/124Q E BSW
34.45" 12.5" 8-11" 8.5" 18.5/32" E 3860/3525 lbs 65 psi 69 lbs 603 Show Specs
LT 235/80R17
120/117Q E BSW
32" 9" 6-7.5" 6.5" 18.5/32" E 3085 lbs 80 psi 51 lbs 649 Show Specs
LT 245/70R17
119/116Q E BSW
30.71" 9.65" 6.5-8" 7" 18.5/32" E 3000 lbs 80 psi 50 lbs 677 Show Specs
LT 245/75R17
121/118Q E BSW
31.54" 9.4" 6.5-7.5" 7" 18.5/32" E 3195 lbs 80 psi 54 lbs 659 Show Specs
LT 255/75R17
111/108Q C BSW
31.77" 10.2" 6.5-8.5" 7" 18.5/32" C 2405 lbs 50 psi 55 lbs 654 Show Specs
LT 255/80R17
121/118Q E BSW
32.8" 10.2" 6.5-8.5" 7" 18.5/32" E 3195/2910 lbs 80 psi 58 lbs 634 Show Specs
LT 265/65R17
120/117Q E BSW
30.51" 10.7" 7.5-9.5" 8" 18.5/32" E 3085 lbs 80 psi 54 lbs 681 Show Specs
LT 265/70R17
121/118Q E OWL
31.85" 10.7" 7-8.5" 8" 18.5/32" E 3195 lbs 80 psi 55 lbs 653 Show Specs
LT 275/70R17
121/118Q E BSW
32.17" 11" 7-8.5" 8" 18.5/32" E 3195/2910 lbs 80 psi 59 lbs 646 Show Specs
LT 285/70R17
121/118Q E OWL
32.99" 11.5" 7.5-9" 8.5" 18.5/32" E 3195 lbs 80 psi 60 lbs 630 Show Specs
LT 285/75R17
121/118Q E BSW
34.06" 11.1" 7.5-9.5" 8" 18.5/32" E 3195/2910 lbs 80 psi 65 lbs 610 Show Specs
LT 295/70R17
121/118Q E BSW
33.23" 12" 7.5-10" 8.5" 18.5/32" E 3195/2910 lbs 80 psi 66 lbs 626 Show Specs
LT 305/65R17
121/118Q E BSW
32.64" 12.3" 8.5-11" 9" 18.5/32" E 3195/2910 lbs 65 psi 65 lbs 637 Show Specs
LT 315/70R17
121/118Q D BSW
34.57" 12.8" 8-11" 9.5" 18.5/32" D 3195 lbs 50 psi 67 lbs 601 Show Specs
LT 37X12.50R17
124P D BSW
36.89" 13.1" 8.5-11" 10" 18.5/32" D 3525 lbs 50 psi 78 lbs 564 Show Specs
LT 265/60R18
119/116Q E BSW
30.75" 10.7" 7.5-9.5" 8" 18.5/32" E 3000/2756 lbs 80 psi 54 lbs 676 Show Specs
LT 265/65R18
122/119Q E BSW
31.81" 10.7" 7.5-9.5" 8" 18.5/32" E 3305 lbs 80 psi 57 lbs 653 Show Specs
LT 265/70R18
124/121Q E BSW
32.87" 10.7" 7-9" 8" 18.5/32" E 3525/3195 lbs 80 psi 58 lbs 632 Show Specs
LT 275/65R18
123/120Q E BSW
32.2" 10.8" 7.5-9" 8" 8.5/32" E 3415 lbs 80 psi 58 lbs 646 Show Specs
LT 275/70R18
125/122Q E BSW
33.39" 11.1" 7-8.5" 8" 18.5/32" E 3640 lbs 80 psi 60 lbs 623 Show Specs
LT 285/60R18
122/119Q E BSW
31.65" 11.8" 8-10" 8.5" 18.5/32" E 3305/3000 lbs 80 psi 61 lbs 657 Show Specs
LT 285/65R18
125/122Q E BSW
32.8" 11.8" 8-10" 8.5" 18.5/32" E 3640/3305 lbs 80 psi 63 lbs 634 Show Specs
LT 295/70R18
129/126Q E BSW
34.25" 12" 7.5-10" 8.5" 18.5/32" E 4080/3750 lbs 80 psi 67 lbs 607 Show Specs
LT 305/60R18
121/118Q E BSW
32.64" 12.1" 8.5-11" 9" 18.5/32" E 3195/2910 lbs 65 psi 66 lbs 637 Show Specs
LT 305/70R18
126/123Q E BSW
35.08" 12.5" 8.5-10" 9" 18.5/32" E 3750/3415 lbs 65 psi 70 lbs 592 Show Specs
LT 265/60R20
121/118Q E BSW
32.76" 10.7" 7.5-9.5" 8" 18.5/32" E 3195 lbs 80 psi 59 lbs 634 Show Specs
LT 275/65R20
126/123Q E BSW
34.17" 11.1" 7.5-9.5" 8" 18.5/32" E 3750 lbs 80 psi 66 lbs 608 Show Specs
LT 285/55R20
122/119Q E BSW
32.6" 11.7" 8-10" 9" 18.5/32" E 3305 lbs 80 psi 56 lbs 637 Show Specs
LT 285/60R20
125/122Q E BSW
33.62" 11.3" 8-10" 8.5" 18.5/32" E 3640/3305 lbs 80 psi 63 lbs 618 Show Specs
LT 295/55R20
123/120Q E BSW
32.95" 12.1" 8-10" 9.5" 18.5/32" E 3415 lbs 80 psi 65 lbs 631 Show Specs
LT 305/55R20
121/118Q E BSW
33.43" 12.5" 8.5-11" 9.5" 18.5/32" E 3195/2910 lbs 65 psi 68 lbs 622 Show Specs
LT 35X12.50R20
125Q F BSW
34.65" 12.5" 8.5-11" 10" 18.5/32" F 3638 lbs 80 psi 70 lbs 600 Show Specs
LT 35X12.50R20
121Q E BSW
34.65" 12.5" 8.5-11" 10" 18.5/32" E 3195 lbs 65 psi 70 lbs 600 Show Specs
Tire Reviews [+]
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ChipsTacoma's Review
Performance : 10/10
Appearance : 10/10
Noise : 5/10
Comfort : 8/10
Price : Over Priced
Recommend : Yes
Comments : Im on my second set on my Tacoma. They look fantastic and perform well. I dont off-road much but they only last about 40K and start getting very noisy around 25K miles.
Hiroshi's Review
Performance : 8/10
Appearance : 10/10
Noise : 5/10
Comfort : 6/10
Price : Seems Right
Recommend : Yes
Comments : I have put nearly 20K miles on my set. The ST MAXX is a solid tire -- excellent in snow, mud, sand, and on hardpack trails. However, in below freezing conditions, the rubber compound is harder, and does not handle as well on packed snow and black ice. Off-road, it can be run at low air pressure for improved traction. Given the aggressive tread pattern, it is not too loud on the highway.
Cerberus's Review
Performance : 10/10
Appearance : 10/10
Noise : 8/10
Comfort : 7/10
Price : Good Deal
Recommend : Yes
Comments : I have ran these tires among others due to my side profession as a car flipper (I buy fix and sell) and by far these are the best all round tire on the market. The only thing that would make this tire better would be its winter traction which is already good. It gets better with basic siping done where the blocks are split 2 times. They dont hold rocks, they clean of mud really well and dig and bite across lots of different surfaces. They also do a great job of handling standing water without hydroplaning. This is my default tire to suggest now for a world capable unit.
Chupacabra's Review
Performance : 9/10
Appearance : 10/10
Noise : 8/10
Comfort : 7/10
Price : Good Deal
Recommend : Yes
Comments : Got these to replace my C rated KO2s that came on my truck (which only lasted 27k miles and chunked horribly).So far these tires are a huge improvement in traction in all situations. Places/conditions that previously required 4wd I can now tackle in 2wd, and the tires do not loose grip nearly as much as the BFGs did. The noise is very comparable, which is pretty incredible, and fuel efficiency remains about the same. Very impressed so far.
BillyBFord's Review
Performance : 10/10
Appearance : 10/10
Noise : 7/10
Comfort : 8/10
Price : Great Deal
Recommend : Yes
Comments : I now have 6000 miles on these from interstate to off road. Towing to 8k pounds and carrying 2500lb pallets in bed. At first dealer inflated to rated 65psi cold and ride was horrible. Optimum ride at 55 cold front and 45 cold in rear. The gain 5psi as they warm up. This gives optimum contact of tread, ride and fuel economy. Driving conditions have been dry, heavy rain and snow/ice. Snow/Ice I dropped pressure -10psi and still drove good increasing contact area. I have over 100k miles each on Toyo, Nitto Terra Grappler and General tires. These impress me with highway and Offroad traction to include bad weather. Offroad has been both sand, clay soils in southeast and rocky terrain of the Smokies. Bought another set for Jeep
Mitch's Review
Performance : 9/10
Appearance : 10/10
Noise : 5/10
Comfort : 10/10
Price : Great Deal
Recommend : Yes
Comments : 2nd set and love them.
Mororvation4u's Review
Performance : 8/10
Appearance : 7/10
Noise : 6/10
Comfort : 6/10
Price : Good Deal
Recommend : Yes
Comments : Good looking hybrid AT/MT. Drives well on the hwy as a daily driver but has never let me down in Sand, soggy mud, hardback or rocky climbs. Will buy again.
Ryland's Review
Performance : 9/10
Appearance : 9/10
Noise : 10/10
Comfort : 9/10
Price : Good Deal
Recommend : Yes
Comments : Great improvement over the factory MT's. Better ride, quieter, and traction handling. Would buy again.
Gary's Review
Performance : 4/10
Appearance : 4/10
Noise : 5/10
Comfort : 5/10
Price : Great Deal
Recommend : Yes
Comments :
Anonymous Review
Performance : 10/10
Appearance : 10/10
Noise : 10/10
Comfort : 10/10
Price : Great Deal
Recommend : Yes
Comments : Wanted a bigger than stock tire on my dually but, didn't want 35s or have to run spacers. These are about 33s and narrow,so no need for spacers. My second set and I absolutely love them. I got 45k miles out of my first set

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