HPI Racing 2-Speed threaded clutch bell is constructed of hard aluminum and is black in color. This product includes one 2-Speed threaded clutch bell.
Diameter: 1.1 or 27.9mm (outside) at widest point
Diameter: 1.025 or 26.0mm (inside of main part)
Diameter: 0.465 or 11.8mm (outside were thread is)
Diameter: 0.375 or 9.5mm (inside were thread is)
Installation onto HPI Nitro 3