Kyosho Mini-Z MR-02 Titanium Differential Shaft by 3Racing KZ-07A  [KZ-07A]

Titanium differential shaft for Mini-Z MR-02

This RC-scale replacement shaft is designed for Mini-Z MR-02 series differentials and offered as a precision hop-up by 3Racing KZ-07A. Machined in titanium, the part targets reduced rotating mass and improved drivetrain feel without changing gear geometry.

Compatibility is limited to Mini-Z MR-02 series models as stated, and the shaft is intended to replace the original differential shaft directly. Inspect mating surfaces and runout before final assembly to confirm smooth gear engagement and correct bearing seating.

Installation follows standard Mini-Z MR-02 differential service procedures. When fitting the shaft, avoid forcing components, ensure the diff gears mesh freely, and apply appropriate differential grease to maintain consistent torque transfer. This part serves as a tuning item to refine throttle response and drive smoothness at scale, not an upgrade for full-size vehicles.