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[StirCrazy]

ya I saw that Steph, but if I was going to use plastic I could use a thin wall PVC pipe. Plastic has to mych of a insulating factor to work good for what I am building .. but I couldsee other uses for it :D

Victor I am thinking I could get away with 12" but 2 feet would give me room to play, I will call a bike place tomorrow and ask them. thanks.

Steve