High-end Sealed ACB Bearing headset for ultimate performance.  Fits integrated headtubes, or conventional head tubes with bearing cups already installed (for threadless headsets).

Compatible with Royal "Pro" Dirt Scooters. Part #s 71506, 71504, and 71503.

Not compatible with Royal "Guard", "Knight", or "All-Terrain" Scooters. Pt#s 71103, 71104, 71105, 71110, and 71505.