FITBIKECO Series One 20.25" Deegan BMX Bike: The Series One was our first frame back in 2000! It was a straight-forward, clean BMX frame that helped redefine what was necessary and what wasn’t. Twenty-one years later, The Series One is a high-quality complete bike that rides well and is priced to sell, with everything riders need and nothing they don’t. With three TopTube sizes and proportional components, there’s an S1 for anyone looking for a 20” BMX bike. Responsive but stable geometry, traditional fork off-set, and comfortable 2-pc bars, these bikes work for any style of riding. One glance at these in person will have you wondering if you’ve hung the wrong price tag on them.