NSR SHARK "EVO" 46k standard Mabuchi can sized motor - Tapped holes for locking - Universal double ended shaft - fits most cars - 46,000 RPM 290 gm-cm torque - standard 2mm (0.078") shaft - applications : Most Fly, Scalextric, Slot.it, Ninco NC-1, Most Carrera, Monogram, etc. - NOT compatible with home racing wall pack power supplies