Bridgestone has expanded its premium agricultural tyre portfolio with six new extra-large (XXL) sizes in its VT-TRACTOR range, targeting the growing demand for tyres capable of supporting the latest generation of high-horsepower tractors.
The newly announced additions cover rim diameters from 38 to 46 inches and are designed to improve traction, durability and operational efficiency for large-scale farming operations.
According to the company, the expansion also introduces an optimised rolling circumference intended to maintain the correct lead ratio between front and rear tyre combinations.
The move comes as agricultural equipment manufacturers continue to introduce bigger and more powerful machines to help farmers improve productivity and cover larger areas in shorter periods.
Bridgestone says the new VT-TRACTOR XXL tyres have been engineered using advanced design techniques, including virtual 3D simulations and proprietary tyre engineering criteria.
The tyres feature deeper tread depths and wider tread widths aimed at balancing grip with long-term wear performance.
A key design element is the company’s patented involute lug technology, which it says provides up to 12% more lug volume than certain competing products tested by Bridgestone.
The additional lug volume is intended to enhance traction while reducing energy losses and maintaining performance over the tyre’s service life.
The expanded range also incorporates Bridgestone’s S-LINE bead profile, designed to increase flexibility when operating at lower inflation pressures.
This helps reduce soil compaction—a major concern for farmers seeking to preserve soil health—while supporting heavy loads and reducing the risk of rim slip.
According to the manufacturer, reinforced casing construction and improved pressure distribution across the tyre footprint are expected to enhance durability, minimise cracking and contribute to longer service intervals.
The optimised rolling circumference is also designed to reduce driveline stress, limit uneven tyre wear, improve fuel efficiency and maintain vehicle stability during field operations.
The new tyres are compatible with Central Tyre Inflation Systems (CTIS), enabling operators to adjust tyre pressures for changing field and road conditions without compromising performance.
Production of the XXL range will take place at Bridgestone’s manufacturing facility in Puente San Miguel, Spain, where investments in production technology and specialised equipment have expanded the plant’s capability to manufacture tyres in the 44- and 46-inch categories.
Bridgestone plans to introduce the new VT-TRACTOR XXL sizes progressively from April 2026, broadening coverage for high-horsepower tractors and supporting compatibility with an increasing range of modern agricultural machinery used in professional farming operations.
The company stated that its internal comparison testing measured the claimed increase in lug volume against selected competing VF agricultural tyres from Michelin and Trelleborg in comparable sizes.
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Martin is a writer at Agrimachinery Africa specializing in agricultural machinery, mechanization trends, and farm technology across Africa. His work focuses on tractors, harvesting equipment, irrigation systems, and emerging innovations helping farmers improve productivity and efficiency. Through in-depth industry coverage, he highlights technologies shaping the future of modern agriculture.