With the advent in recent years of mechanization in deep-level gold and platinum mines, large quantities of rubber are being used on both production and support vehicles. Conditions in these types of mines are extremely harsh and, as a result, the performance is slgnificantly lower than in other types of mining such as open-cast basemetal mining, where more favourable conditions prevail. Various options are available to the user to reduce tyre costs, including the use of retreads, the filling of tyres, and the repair of damaged tyres. While these methods may be generally successful in open-cast conditions, their use in deep-level mining needs to be carefully evaluated for each particular set of conditions. A basic requirement for any evaluation of tyre costs is the availability of reliable data on tyrre performance and ,for this reason, it is essential that proper tyre records are maintained This paper reviews the performance of tyres in deep-level gold and platinum mines in Johannesburg Consolidated Investment Company, Limited (JCI) over a period of about 8 years, and shows how the costs of retreading and tyre filling can be evaluated in practice. It also discusses the cost implications of repairing damaged tyres.