The Hills Motorway (also known as the Hills M2 Motorway, M2 Motorway or simply M2) is a tollway in north-western Sydney, Australia, owned by toll road operator Transurban. It forms majority of Sydney's M2 route and part of the 110 km Sydney Orbital Network, with Lane Cove Tunnel constituting the rest of the M2 route. The M2 is also part of the National Highway west of Pennant Hills Road. It was known as the North West Transport Link during planning in the early 1990s. The M2 cycleway is located on the breakdown lanes of the M2 Hills Motorway.