The 3D printed bike: Silicon Valley startup reveals carbon fiber frame

After a career that included helping Alphabet Inc'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. Arevo is using the bike to demonstrate its design software and printing technology, which it hopes to use to produce parts for bicycles, aircraft, space vehicles and other applications where designers prize the strength and lightness of so-called'composite' carbon fiber parts but are put off by the high-cost and labor-intensive process of making them.