DK Opsis 2011 BMX Bike DK Flatland frame design, 4130 Chromoly DK 4130 Chromoly fork (1-1/8) DK 2 pc Chromoly handlebar Strong 4130 Chromoly 3pc crank, 160mm 36H AlienationPBR rims w/Sealed 10mm front and 14mm Freecoaster rear hub