Cooper's proven, class-leading 3-ply Armor-Tek3 construction
contributes to the durability of the S/TMAXX by adding
strength to the sidewall and tread area. A unique angled ply
construction absorbs and helps dissipate tire impact forces
that can damage a tire in harsh off-road conditions.
HYBRID 4-5-RIB TREAD PATTERN
The alternating 4-5-rib tread pattern gives the S/TMAXX
a bold look, while providing enhanced on- and off-road
performance. The pattern geometry and internal siping
provide an optimized blend of all-season and off-road traction
performance. The 4-5-rib tread element design of the
S/TMAXX randomizes tread block impacts with the road
surface resulting in remarkably low noise for a tire of its class.
BLENDED NATURAL RUBBER AND SILICA BASED
The tread compound is formulated with a unique blend
of natural rubber and silica that provides exceptional wet
traction and confident handling on the highway, while also
delivering excellent cut and chip resistance on unpaved,
rocky and gravel terrain.
MICRO-GAUGE SIPING WITH ROUNDED CORNERS
The micro-gauge sipes in the tread provide increased tread
block rigidity and vehicle stability while reducing the potential
for stone retention and stone drilling into the tread elements.
The rounded corners reduce stress concentrations to
enhance crack and tear resistance of the tread blocks.
OPTIMIZED PROFILE DESIGN
The optimized tire profile is designed to improve on-highway
handling characteristics and promote reliable, long and even
ASYMMETRIC DUAL DRAFT TREAD ELEMENT
The asymmetric and dual draft angles along the tread
element walls aid in reducing stone retention and stone
drilling and increases their resistance to cutting and chipping
when used in gravel or off-road applications.
STONE EJECTOR RIBS
Strategically placed ribs within the lateral grooves of the tread
design help to discharge stones and resist stone drilling.