105 sti = 9 speed ? , xt rear der(adjust stop screws),cassette= 9 speed......====no probs !!!
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Velosophy#1: It is better to have a bicycle and no money , than money and no bicycle ! Velosophy # 2 : "Winning is simple, but not easy." #3: "Give a man a fish and he shall eat for a day , teach him how to fish and he will sit in a boat and drink beer all day"