Discoverer STT Pro - Cooper Tires

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Cooper

Discoverer STT Pro

Features and Benefits

ARMOR-TEK3 ™ CARCASS PROTECTION
Cooper's proprietary and proven full 3-ply carcass construction in the tread and sidewall provides 50% more protection against impact damage than standard 2-ply tires. The third ply is oriented at an optimal angle to the first two plys to maximize carcass protection in extreme off-road conditions.

3-2 INNER TREAD RIBS
The inner tread ribs of the Discoverer STT PRO are positioned in an alternating 3-2 pattern. This unique hybrid design provides a number of significant performance benefits like: reduced road noise, increased stability and handling, superior soft surface (trail) and mud traction, balanced wear, and reduced tendency for vehicle drift commonly experienced on fitments with aggressive off-road tires.

LARGE DEPTH SIDE BITERS
The Discoverer STT PRO features large, specially-designed cleats of rubber (side biters) on the shoulder area of the sidewall, to enhance traction and grip in muddy or soft terrains and in rock crawling situations where maximum grip is essential. The orientation and design of these cleats promotes traction on inclines, reducing the chances of tire side-slip.

FLEX GROOVE
The "flex groove" is a small, circumferential groove in the buttress region that generates a designed flex point in the tire. This ability to flex in a predetermined location provides a smoother ride by helping to dampen the impact generated by inconsistencies in pavement, potholes and gravel. In tough off-road situations where tires are sometimes aired down, this groove allows the tread and side biter to better conform and work together when traversing irregular, tough obstacles.

ALTERNATING MUD SCOOP & ASYMMETRICAL SCALLOP
The asymmetrical scallops on alternating lugs direct mud into the mud scoops to allow the Discoverer STT PRO to pull through muddy terrains with ease. These “scoops” act as shovels to consistently dig in as the tire rotates. Scoop by scoop the Discoverer STT PRO digs in and will confidently pull your vehicle through the toughest situations.

MUD-FLEX DESIGN
The mud-flex design is where the outside shoulder and intermediate tread ribs are strategically coupled together along their face. This connection creates a continuous cleating feature that assists the Discoverer STT PRO in digging through muddy terrain. The back side of this face is ramped to allow the tread blocks to work independently which provides better stability and tread conformity in less aggressive situations.

MUD RELEASE DIMPLES
Small dimples along the shoulder tread block walls create mini air pockets that help prevent mud from sticking between the tread blocks. These dimples aid in the self-cleaning capabilities of the Discoverer STT PRO.

VARIABLE DRAFT ANGLES AND OPTIMIZED TREAD BLOCK POSITIONING
The variable draft angles on the groove walls along with the strategic placement of the tread blocks work together to reduce the chance for stones and gravel to be trapped in the tread.

360° RUBBER RIB
The 360° rubber rib located just below the “flex groove,” provides additional abrasion resistance in harsh off-road conditions and curb protection during in-town driving.

WIDE LATERAL GROOVES
The wide, lateral grooves of the STT PRO's tread design promote self-cleaning and reduce the chance of stone retention. The placement of these wide grooves provides exceptional mud traction and also gives the Discoverer STT PRO a unique, aggressive look.

STONE EJECTOR RIBS & PADS
These raised rubber ribs and pads at the bottom of the tread grooves are strategically placed to provide extra rubber gauge in the widest portions of the grooves to help resist stone drilling and impact damage.

VARIABLE DEPTH SIPING
Variable and full depth siping help to maintain the STT PRO’s all-season performance throughout the life of the tire without sacrificing the stability and integrity of the tread blocks. This sipe design also helps reduce cutting and chipping at the ends of the sipes by minimizing the stress concentrations normally generated there.

COUPLED SILICA TREAD COMPOUND
The Discoverer STT PRO's tread compound is formulated with a chemically coupled silica and carbon black mixture that provides improved wet traction on-road and in slick situations encountered off-road. Cut and chip resistance in more harsh, rocky and gravel terrain is also improved.

RUBBER RIM FLANGE PROTECTOR
Strategically placed in the lower sidewall area, a raised rubber rim protector helps protect the wheel and tire from hazards in off-road driving conditions while enhancing the STT PRO’s appearance.


Select a tire size to view more details:

Size MSPN    
LT215/85R16 170126006 Request a Quote More Info
LT225/75R16 90000023668 Request a Quote More Info
LT235/85R16 170109006 Request a Quote More Info
LT255/75R17 170131034 Request a Quote More Info
LT265/70R17 170102034 Request a Quote More Info
LT265/75R16 170106034 Request a Quote More Info
LT275/65R18 170121034 Request a Quote More Info
LT275/65R20 170127006 Request a Quote More Info
LT275/70R18 170111034 Request a Quote More Info
LT285/65R18 170118034 Request a Quote More Info
LT285/70R17 170114034 Request a Quote More Info
LT285/75R16 170108034 Request a Quote More Info
LT295/55R20 170135006 Request a Quote More Info
LT295/60R20 170104006 Request a Quote More Info
LT295/65R20 170105006 Request a Quote More Info
LT295/70R17 170115034 Request a Quote More Info
LT295/70R18 170145034 Request a Quote More Info
LT305/55R20 170116006 Request a Quote More Info
LT305/60R18 170123034 Request a Quote More Info
LT305/65R17 170136006 Request a Quote More Info
LT305/70R16 170120034 Request a Quote More Info
LT305/70R18 170125034 Request a Quote More Info
30X9.50R15LT 170122034 Request a Quote More Info
LT315/70R17 170119034 Request a Quote More Info
LT315/75R16 170117034 Request a Quote More Info
LT325/50R22 170133006 Request a Quote More Info
LT325/65R18 170124034 Request a Quote More Info
35X12.50R20LT 170128006 Request a Quote More Info
35X13.50R20LT 170141006 Request a Quote More Info
37X12.50R20LT 170138006 Request a Quote More Info
37X13.50R20LT 170134006 Request a Quote More Info
38X13.50R20LT 170143006 Request a Quote More Info
38X15.50R20LT 170144006 Request a Quote More Info
31X10.50R15LT 170110034 Request a Quote More Info
32X11.50R15LT 170130034 Request a Quote More Info
33X12.50R15LT 170107034 Request a Quote More Info
35X12.50R15LT 170113034 Request a Quote More Info
35X12.50R22LT 170132006 Request a Quote More Info
37X12.50R17LT 170129006 Request a Quote More Info
37X13.50R17LT 170137006 Request a Quote More Info
37X13.50R18LT 170139006 Request a Quote More Info
37X13.50R22LT 170140006 Request a Quote More Info
38X15.50R18LT 170239006 Request a Quote More Info
40X13.50R17LT 170142006 Request a Quote More Info
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