Mini 4mm shaft replacement - brushed or brushless

Repeat Robotics Verified independent store

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4mm shaft upgrade kit Select 22.6:1 or 28.5:1 versions (not cross-compatible) Comes with a shaft pre-assembled to the ring gear, all you need to do is transplant the gears Use a JI S or PH#0 screwdriver and lots of pressure to avoid stripping the little screws when disassembling the gearbox. Show more