A wheel provided with a tyre in tyre installation in which an outer ground engaging tyre is mounted on a rim of the wheel and an inner inflatable member is mounted on the rim inside the outer tyre. The inner surface of the outer tyre and the outer surface of the inner inflatable member are provided with respective electrically conductive members suitably in the form of induction loops. A controller determines when the respective electrically conductive members come into close proximity or contact, enabling manual or automated adjustment of air pressure to minimise abrasion between the outer tyre and inner inflatable member.