Michelin CEREXBIB 2 620/70R26 173A8

Power your harvest with the Michelin CEREXBIB 2 620/70R26 173A8, the premium harvester tyre engineered to protect your soil and maximise productivity. VF UltraFlex technology carries higher loads at lower pressures, creating a larger footprint for superior traction, reduced compaction and fewer ruts. A reinforced casing and stubble-resistant tread deliver long, reliable service and comfortable road travel between paddocks. With confident handling, strong self-cleaning and low slip for fuel savings, Cerexbib 2 keeps you moving. Enquire now to get the right size fitted to your machine.

VF Ultraflex Casing. Michelin Ultraflex VF technology on the Michelin CEREXBIB 2 620/70R26 173A8 enables very high radial deflection at lower inflation pressures for a given axle load, which elongates and widens the contact patch to reduce peak ground pressure while maintaining casing integrity. By distributing compressive and shear stresses more uniformly across the soil-tyre interface, the tyre improves traction at lower slip ratios, converts engine torque into drawbar pull more efficiently, and limits rut formation. Reduced carcass hysteresis at optimised pressures lowers heat build-up under cyclic loading, preserving cord adhesion and prolonging service life, while delivering a more compliant ride and better stability on-road with heavy headers or grain tanks attached.

CFO Cyclic Rating. The Michelin CEREXBIB 2 620/70R26 173A8 carries a CFO (Cyclical Field Operations) marking, validating a controlled overload capability at field speeds to accommodate transient mass increases during harvesting cycles, such as grain tank fills or chaser bin transfers. This rating is achieved through calibrated thermal reserve in the casing, bead, and shoulder zones, allowing short-duration peak loads without exceeding rubber-glass transition thresholds or ply strain limits. Practically, you can run lower baseline pressures for flotation and then safely tolerate momentary load spikes, minimising pressure adjustments between headland turns and haul-outs, protecting the structure from fatigue, and maintaining throughput during critical harvest windows.

Optimised Footprint Geometry. An optimised lug architecture and carcass contour generate a long, rectangular footprint on the Michelin CEREXBIB 2 620/70R26 173A8, with balanced void-to-lug ratios and progressive shoulder stiffness that stabilise the pressure map across the tread. The result is reduced peak kPa at the crown, lower lateral shear at the shoulder, and enhanced self-cleaning, which collectively improve traction efficiency, braking authority on slopes, and steering precision in soft soils. By preserving macroporosity in the A-horizon and limiting subsoil compaction, the tyre helps maintain infiltration and root development for subsequent crops, while also reducing fuel consumption via lower slip and improved rolling resistance in the field.

Stubble-Resistant Compounds. Purpose-formulated tread and undertread compounds in the Michelin CEREXBIB 2 620/70R26 173A8 combine high-dispersion carbon black, silica, and cut/chip-resistant elastomers with reinforced crown plies to combat maize and cereal stubble penetration and abrasive wear. The compound’s tear strength and crack-growth resistance are complemented by a protective undertread thickness and buttressed lug bases, which deflect and blunt stubble impacts before they propagate into the carcass. Enhanced ozone and heat ageing resistance further stabilise modulus over the tyre’s life, reducing chunking, belt-edge separations, and downtime so you can keep harvesting when conditions are at their toughest.

Reinforced Bead Package. A heavy-duty bead bundle with high-tensile wire, robust chafer, and a tall, optimised apex in the Michelin CEREXBIB 2 620/70R26 173A8 ensures secure rim seating at very low pressures and high torque, controlling micro-slip and fretting under severe drive and braking loads. The high turn-up carcass geometry spreads stresses away from the bead seat, reducing heat concentration and maintaining airtightness in tubeless setups during prolonged road hauls between paddocks. This reinforcement underpins predictable handling with large headers, minimises bead fatigue over repeated cyclic load events, and protects rims, supporting both field performance and efficient transport speeds within Michelin’s rated limits.