Originally Posted by pcb09

In 2013 trek introduced the mad one in a aluminum model and discontinued the 2.1 of previous years.

If you want info on the 2012 2.1 hit up the trek bikes.com website and at the bottom left check out the bike archives to get info on that model.

The 2013 madone 2.1 is a nice hydroformed aluminum frame, that is stiff and will accelerate well. It is a pretty nice ride. I for what its worth would go for a 105 equipped bike (I.e. 2013 mad one 2.1) than a sram apex groupo. The bike gets the mad one name since a lot of what makes the carbon madone great (geometry,tube shape, etc...) is included in the new madone 2.1.

Hope that helps