Marc Laferriere, Director of Michelin Truck Tyre Marketing said fitting incorrect tyres on commercial vehicle fleets affects performance by as much as 30 per cent, resulting in costly maintenance, vehicle downtime and retread bills. He was addressing delegates on the second day of the Commercial Vehicles Conference. The tyre sponsor Michelin also unveiled the new X Line Tropic F, a tyre specifically designed for the commercial vehicles sector that utilises the same technology used in Formula One tyres Using new belt technology called ‘FAZ’, which has been used for years on Formula One cars, the X Line Tropic F promises significant improvement in mileage and retreadability.