I'm pretty sure the 2009 frame is the same as the 2010. I have an XL size frame and I'm big guy with size 13 shoes so I need a rack that can handle panniers or baskets that can be set back far enough so my feet won't bash into them.
Anyone have any luck finding a rear rack that fits the bill?
Specialized has a rack set for the Tricross that would fit a Sirrus also. My bike is a 52 (S) and I have no heel strike issues when I'm loaded with panniers. If you look at the bottom of the rack the stay extends back to add clearance. They are only available as a set. Chainstays on my bike are 440mm.