I have talked to several dealers about the Trek Pilot 2.1 WSD. According to the Specifications listed on the Trekbike website the 2006 model should come with a 10 speed rear cassette and Ultegra front and back deraillers ---however the Dealer's website states that this model comes with a 9 speed rear cassette and a 105 front derailler. It seems weird to me that the dealer and Treks website do not state the same specs. I am supposed to pick up my new 06 Pilot 2.1 tomorrow but I am concerned about this seemingly minor difference in specs. What do you all think?