Contractor shall furnish tires and the following mentioned services to the District at its own expense: Contractor shall mount and dismount tires on rims, balance mounted tires, re-groove tires, re-cap tires, change wheels or rims to and from coaches, torque wheels and rims and all mounted tires must be inflated to their proper air pressure in accordance with Standard Operating Procedure (SOP) which shall be provided to awarded Contractor upon request.