A trial conducted by an independent soil scientist has shown the benefits of Michelin’s Ultraflex technology in its CerexBib combine harvester tyre in terms of reducing soil compaction – a significant factor in plant root growth and yield potential. Philip J Wright of Wright Resolutions used a Claas Lexion APS Hybrid Combine at the manufacturer’s headquarters in Saxham to test the CerexBib against conventional agricultural tyres commonly fitted to combine harvesters, such as Michelin’s MegaXbib and MachXbib with standard fitments from two other tyre manufacturers.