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Odyssey cranks

It is true Odyssey Blackwidows ARE NOT for jumping they are for race only. They are made of 7075 Aluminum. Witch is stronger and harder than 6061. 6061 is used to make stems pedals seat clamps and breaks MOST of the time. Even though 7075 is more durable than 6061 the Blackwidows I had wear weak at the point of contact on the spindle, I think because it was square. But yes it is true they should NOT be jumped. Trust me I have degree in machine toll.
 
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