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Old 08-10-2011, 10:45 AM   #1935
chris moore
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Join Date: Mar 2004
Location: Phx AZ
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On the BMI website Jason has a list of the colors and the shore rating that each color represents. The firmness; or shore number; and the type of foam determines what works best on each surface. Its not 100% complete as some new compounds have come out recently like orange that is not listed, but it will get you pointed in the right direction. But that can change from track to track as other varibles like how the track is preped and what tire additives are allowed also effect tire choice. If your still unsure post up your track type, type of prep used; like sugar water or soda on asphalt; and class your going to run and Jason will get you sorted out.
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