Renting a bicycle

[benb]

Hi all,
My dad is visiting us here this week, he wants to ride around the city, maybe even to Tigre. I have a bike but he'll need to rent one so we can ride together. Does anyone know of a good place to rent bikes? Preferably mountain bikes (with basic suspension), and with a location in or near Palermo.

The only one I've found online is Bicicleta Naranja, but from the photos it looks like their bikes (with KLM logos on the back) scream "tourist!" which I'd like to avoid, and aren't really suited for long or bumpy rides. Has anyone rented from them?

Thanks for any suggestions!
Ben

 

[afield]

Try Urban Biking or Biking Buenos Aires. They appear to have more regular models.