Ready to ride. The DK Swift bikes are an affordable first step to a life of BMX. The Swift series is sized to fit every rider in your crew, from the 18” Micro for the youngins to the Pro 20" for full-sized humans. Each Swift bike is built on a lightweight aluminum frame with race-proven geometry, sized by model with proportionate handlebars, cranks, and gearing. The Swift Pro features a sturdy chromoly 3-piece crank, while other sizes have a 3-piece alloy crank, sized accordingly. Alloy rims fitted with all-terrain tires put these bikes into motion and provide a smooth ride on any surface. All told, the Swift Series bikes are easy to ride, ready to race, and delivered at an unbeatable price.