Shah Rukh Khan has been using a bike to travel on the sprawling sets of 'Chennai Express'

Shah Rukh Khan, who is shooting for Rohit Shetty's film in Wai, has been riding a bike to commute on the sets which are spread over 20 acres.

Says an onlooker, `The set covers a vast area of land. Most of the unit folk use cars to reach different spots on the sprawling sets but Shah Rukh prefers the bike. He will also be seen riding it for some scenes in the film as well.`

The source adds, `Shah Rukh has been juggling his shoot and other commitments. At times he shoots during the day and flies to Mumbai at night and returns the next morning for the shoot.`