Organised by X Factor Cycling Community, Monster Cycling is a cycling marathon held in three categories—20 km, 36 km and 
60 km. The route of the ride that starts and ends at Just Buy Cycle in Velachery will include Medavakkam, Tambaram and Guduvachery. Helmet and light on the cycle mandatory. Registration available online. 5 am onwards. Details: 86100-56003.