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Silicon Valley startup peddles 3D-printed bike

After a career that included helping Alphabet’s Google build out data centers and speeding packages for Amazon.com Inc to customers, Jim Miller is doing what many Silicon Valley executives do after stints at big companies: finding more time to ride his bike. But this bike is a little different. Arevo Inc, a startup with backing from the venture capital arm of the Central Intelligence Agency and where Miller recently took the helm, has produced what it says is the world’s first carbon fiber bicycle with 3D-printed frame.…