One of two SIMA Gold Medal recipients, Trelleborg launched its VIP (variable inflation pressure) tire system, capable of automatically increasing and reducing pressure based on load weight. The system, initially tested in Fendt combines, features a compressor and enclosed sensing control unit in the axle that adjusts tire inflation to reduce compaction by about 10% and increase crop yield by about 5%, according to Lorenzo Ciferri, marketing director for Trelleborg. The system is still in the prototype stage and being field-tested on wheat, Ciferri says.