Hermes UK, the consumer delivery specialist, has renewed its three-year tyre contract with Michelin solutions, saying the efficient management of its tyres helped contribute to a 12 per cent reduction in diesel bills over the last three years. The Effitires contract – Michelin solutions’ name for an outsourced tyre management deal – will cover the entire Hermes UK fleet of 190 tractor units, 368 rigid trucks and 760 trailers.