The Kyosho MZW209 Titanium Ball Differential Shaft is a straightforward upgrade for Mini-Z MR-03 pilots seeking cleaner throttle response. Manufactured for accuracy and longevity, the titanium shaft trims rotating mass to help the car accelerate and respond more precisely.
Titanium delivers strong mechanical properties with less weight than many steels, which is why it is chosen for drivetrain upgrades. Fitting a titanium shaft reduces rotational inertia while keeping part life high.
This shaft is intended for Kyosho Mini-Z MR-015, MR-02, and MR-03 models and installs as a like-for-like replacement. It is suited to racers and hobbyists tuning their cars for mixed surfaces and quick cornering.
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