DK Sprinter Pro XL Race BMX BikeGet serious. The DK Sprinter Series bikes are ready for business on the BMX track. Each Sprinter starts with an advanced design aluminum frame with integrated headset, internal cable routing, and 3D dropouts. From there, you get a chromoly fork that can take the abuse of casing a jump or hitting the curb cut in front of your house. Youll find sealed bearings all around on every Sprinter in the line. ###section### Product Specs FRAME MATERIAL: 6061