HPI Racing Saturn motor is a 540-size motor with pre-installed wires with bullet connectors.
Length: 2" (51mm)
Diameter: 1.5" (38mm)
Got it quickly to APO and it was as advertised!
it's not too happy with the part throttle stuff. Still it's a great little inexpensive disposable motor.
Nice inexpensive motor. Lots of low end. Bash it, wear it out, buy another.