Go into some detail ... what type of riding will you use the new wheels for ?? , no Mavic hubs are not plastic ! LOL .. if you give us some clues as to what there intended for ..it will be a lot easier to give you some advice on your choices ....
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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"