, JuanCa wrote

Hi all, I live in Madrid and work about one mile from IFEMA.  I would not recommend you rent a Bike to move around.  IFEMA is not located close to the city.  It´s actually closer to the Airport.  So renting a BIKE would probably be useless unless you want to do some exercise. I wish I could write something different.

The Best option is definitely the METRO.

Enjoy your stay here,

JuanCarlos 

Perfect info @JuanCa thanks!