Diamondback 2012 2nd Assault Dirt Jump & Park Bike (China White, 13-Inch/ Medium) 6061-T-6 Aluminum Assault Dirt Jump Frame Manitou Circus Comp, 100mm travel, w/20mm thru axle 48spline sealed cartridge BB w/25t DB alloy ring, 12t cog Alienation PBR frt / Blacksheep rr Rims w/cartridge bearing hubs Hayes HMX-5 Mechanical rear disc brake w/160mm rotor