I am currently researching replacement tires for our bus that has the original (7year old) Michelins. Safety and ride comfort are my main point of concern while looking at the different brands and models. Michelins are great tires, at a price. My local commercial tire dealer is recommending Firestone FS561at a cost savings of about $150 per tire. Hopping to have the new skins put on next week once i have decided which tires to go with.