Gri GREEN XLR 85

Optimised 85-series profile. The Gri GREEN XLR 85 leverages an 85-series aspect ratio to form a longer, wider footprint under load, lowering ground pressure and reducing rutting at workable field inflation levels while preserving soil structure. Increased contact patch length enhances tractive efficiency by reducing slip ratio and micro-shearing, so you can transmit more torque into forward motion with fewer passes. On-road, the balanced crown radius and contact pressure uniformity help minimise irregular wear and vibration, supporting higher transfer speeds between paddocks with improved comfort and predictable steering.

Multi-angle traction lugs. A multi-angle lug layout combines straighter central angles for efficient longitudinal drive with steeper shoulder angles for strong lateral bite on slopes and headlands, maximising drawbar pull in wet or mixed soils. Staggered leading edges and deep buttress support stabilise the lugs under high torque to cut squirm, while inter-lug tie bars improve tread rigidity for road use, delivering consistent braking and reduced tread walk. The variable pitch sequence helps damp harmonic noise, giving a quieter, smoother ride without sacrificing in-field grip.

Low-heat eco compound. A low-hysteresis tread formulation, engineered with a modern polymer–filler system to reduce tan delta at operating strain, limits energy loss from cyclic deformation and keeps the tyre running cooler under transport loads. Lower heat build-up mitigates thermo-oxidative ageing in the casing and belt package, helping maintain carcass integrity over long hours and extending service life. Reduced rolling resistance on-road translates to measurable fuel savings and lower CO2 per hectare, while optimised anti-ozonant and anti-UV stabilisers resist cracking in New Zealand’s variable climate.

Reinforced radial casing. The reinforced radial construction uses high-tensile textile plies with a stabilising belt package to provide controlled sidewall deflection, allowing lower working pressures for better flotation without compromising bead security. A robust bead apex and abrasion-resistant chafer reduce rim slip and chafing under heavy drawbar loads, and the casing architecture spreads stress evenly to resist ply fatigue. The result is higher load-carrying confidence, improved ride comfort, and dependable durability across frequent field–road transitions.

Self-cleaning tread channels. Wide, tapered voids and carefully profiled groove exits promote rapid mud and clay ejection through centrifugal action, preventing lug packing and maintaining a sharp leading edge for traction in sticky paddocks. Stone-ejector features and negative lug geometry limit stone retention and drilling, protecting the carcass and preserving balance during road runs. Consistent self-cleaning sustains traction, reduces time lost to spin, and protects fuel efficiency across loam, clay, and pumice soils commonly encountered in New Zealand farming.