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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
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[QUOTE="FLBusa, post: 753407, member: 42710"] It's all dependant on wall thickness (if you have a hollow stem) and the type aluminum that you use. I'm sure that the KX stem has been engineered very near it's limit. Let's face it... the MX world is very competetive and every gram of weight that can be saved is. It makes perfect sense that they would not recommend reducing the stem diameter. On the other hand... If you are fabricating your own stem from scratch. You can replace the mass that you removed from the outside of the stem to the inside bore by making it smaller. If you weren't concerned with weight you could make the stem from a solid aluminum bar. My guess is that the KX stem is made from 6061-T6 a very good strong alloy with a yeild of 40,000psi and an ultimate of 45,000psi. You can just as easily obtain some 7075-T6 which has a yeild of 75,000psi and an ultimate of 85,000psi. Just to give you an idea of just how strong aluminum is... ASTM A-36 Steel has a yeild of around 36,000psi and an utimate of 58,000psi. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
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