I am going to get measured by my bike fit guy and he is going to give me a print out of the specifications to look for. It may be that I don't need a WSD because of my size. I am 5' 8"- 5'9" depending on whether I am lifting weights or not. I was just looking for any feedback on the 2100. I am a runner and it seems that the running community is 50/50 women with regards to participants and awards. I went to a cycling event and was shocked at the difference in number of participants and awards. Women are definitely under-represented. It will take some getting used to.