The 2019 Fly Sion freestyle BMX bike features a versatile design with minor geometry changes for adaptability across various terrains. It has a comfortable 13.4" rear end and forks with a steeper offset for improved feel and control. Maintaining the popular elements from the 2018 model, it includes a lightweight and durable Full CrMo frame, a sealed bearing bottom bracket, and CrMo Trebol 3-piece cranks.