Warrior WT922

Ribbed tread geometry. The Warrior WT922 uses a stable ribbed tread layout to generate a broad, uniform contact patch that suppresses heel–toe wear and reduces stress concentrations at the leading/trailing edges of the blocks. The rib rigidity is tuned to resist lateral squirm under steer inputs while maintaining longitudinal stiffness for confident braking, helping the tyre track true on highway crowns and coarse chipseal. By evening out contact pressure across the footprint, the pattern mitigates cupping and river wear, extending tread life and preserving alignment feel. This geometry also improves on-centre stability and reduces driver correction, supporting safer, more predictable handling in regional and long-haul applications. For operators, the result is slower irregular wear, longer removal mileage, and lower cost per kilometre without sacrificing steering precision.

Wide circumferential grooves. Engineered with wide, continuous channels, the WT922 evacuates surface water rapidly to maintain high contact patch shear force on wet NZ roads and reduce hydroplaning onset at speed. The groove volume and open shoulder flow paths create low-pressure zones that pull water away from the leading edge, keeping the rubber-to-road interface effective under braking and cornering. Supplementary lateral notches aid micro-hydrodynamic breakup of the water film, improving µ-slip control and ABS efficiency. The geometry also promotes airflow through the tread at operating speeds, contributing to thermal management and stabilising compound hysteresis for consistent rolling resistance over long distances. This drainage design enhances wet stopping performance while maintaining even wear across multiple axle positions.

Heat-resistant compound blend. Warrior specifies a low-hysteresis, heat-stable compound in the WT922 that couples reinforcing carbon black with silica and coupling agents to reduce internal heat build-up under sustained load and speed. By lowering tan delta at operating temperatures, the tread minimises energy losses at the contact patch, reducing rolling resistance and improving fuel economy without compromising cut-and-chip resistance on coarse aggregate. Anti-oxidant and anti-ozonant packages protect the rubber matrix from thermal and environmental degradation, preserving elasticity and crack resistance through heat cycles. The compound’s optimised glass transition window also keeps the tread compliant in colder South Island conditions, supporting wet grip when the road surface is cool. For fleets, this chemistry translates into extended tread life, stable performance across seasons, and reduced operating costs per kilometre.

Reinforced all-steel casing. The Warrior WT922 features an all-steel, high-tensile casing with multiple belt plies and robust belt-edge reinforcement to distribute loads evenly and resist impact damage. A strong bead package with a heavy-duty chafer and apex stabilises the bead seat, improving uniformity and reducing heat generation at the lower sidewall in high-load, high-speed service. Enhanced ply turn-up geometry adds lateral stiffness to limit sidewall deflection while preserving vertical compliance for ride comfort and footprint stability. This construction improves puncture resistance and helps maintain casing integrity for retreading, enabling multiple life cycles when inspected and processed correctly. The result is greater uptime, predictable handling with heavy axle weights, and amortised asset value through reliable retreadability.

Stone-ejector groove system. Strategically placed stone ejectors at the base of the WT922’s main grooves disrupt spiral drilling and prevent stone retention that can penetrate to the belt package. By keeping the grooves clear, the system preserves water evacuation efficiency and prevents groove-bottom stress risers that lead to cracking and early casing scrappage. The ejector geometry is tuned to shed a range of chip sizes common on NZ chipseal and unsealed access roads, reducing the need for manual stone picking during inspections. Limiting stone drilling protects belt edges from rust jacking and delamination, sustaining the tyre’s uniformity and retread suitability over its service life. For operators, this safeguards the casing investment, extends usable tread life, and reduces unscheduled downtime from penetrating damage.