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Old 10-08-2007 | 03:12 AM
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speedster 1919
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Default RE: OS .75AX users please post prop sizes

15x7 on a 75 is got to be a joke. A fast prop on a 75 would be a MAS 12x7 and 13x6 is a 91 size. I would try the 13x6.........Sometimes OS way over prop recomends and the Japan noise rule would explain this.