Leading UK farm machinery show, LAMMA opened today at the Newark and Nottinghamshire Showground, Winthorpe, with Michelin using the show as an opportunity to exhibit its latest addition to the range of sizes for its CerexBib combine harvester tyre. The IF (Improved Flexion) 800/70 R38 CFO (Cycling Field Operation) is a direct reaction to some of the largest machines expected to be delivered to customers this year. The CerexBib is designed to protect fields and deliver higher load capacity for a narrower width, helping large grain farmers, contractors and farm machinery cooperatives, according to Michelin.