The service kit piston BIHR is a pack that combines the need for reconditioning your high-engine: Casted Piston, Axis, Segment(s) and VertexRoaded Keyboard Centauro Needle Cage (2 time only) Piston size (Ø mm): DA: 66,35 DB: 66,36 DC: 66,37 DD: 66,38