I just bought an 07 Hardrock Sport Disc frame. I am selling my Schwinn Rocket Pro frame and would love to use as many parts as I can from this bike to put on my Hardrock. First, the headset in my Schwinn say 1 1/8 threadless semi integrated, and the Specialized website has 1 1/8 threadless. What is the difference? Will the one from my Schwinn work on my Specialized? Also, I am running a 9 speed rear cassette on my Schwinn and the Specialized uses and 8 speed. Will this fit, or was the Specialized designed for an 8 speed?

If anybody has ANY parts that would fit my 07 Specialized Hardrock Sport Disc frame, please let me know and I will be willing to purchase them.