The 241mm Rockering Frame is ideal for speed slalom skating or skaters wanting increased maneuverability. With a minimalist design and an extruded aluminum frame, this frame provides torsional rigidity and advanced maneuverability. All wheel axles can rocker up 2mm to allow for a flat, front, center or rear rocker set up. Ideal frame size for Crossfire skate sizes (41-46) Hardware included: (6) racing axles, (4) mounting bolts and a 4mm Allen Key