What’s a city to do when there’s a large, empty building that’s been closed for almost four years? Hold a bike fest in it! This weekend, the former COPIA center site plays host to the first annual Napa Bike Fest, a celebration for all types of cycling enthusiasts. With three different bike rides for different ability levels, everyone will have a chance to ride. After a cruise around town, there’ll also a BMX bike show, bike movies, live music, food and even a swap meet to sell or exchange bikes or bike parts. It may seem like a small silver lining to COPIA’s bankruptcy—or more like silver spokes—on Saturday, April 28, at the former COPIA Center. 500 First St., Napa. 9am. Free. www.napabike.org.