Mini 4WD Hyper-Dash 3 Motor Guide
Hyper-Dash 3 (15477) is Tamiya's usual Mini 4WD race motor: 17,200-21,200 RPM, 1.4-1.9 mN·m, 1.6-3.0 A. Gear pairing, the PRO twin, and J-CUP 2026.
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Tamiya Mini 4WD Pinion Puller (Blue)(15422)
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Description
The Pinion Puller is a small maintenance tool for removing an 8-tooth pinion gear from a Mini 4WD motor's output shaft without prying or striking it. Turning the tool's screw draws the pinion off the shaft in a controlled, straight pull, avoiding the bent shafts or cracked bearings that can result from levering a stuck gear off with a screwdriver.
Tamiya's listing shows this tool as compatible across all nineteen current and legacy chassis types, which makes sense given it services the motor rather than the chassis. Removing a stuck pinion is normally the first step when swapping motors between units such as the Torque-Tuned, Rev-Tuned, or Atomic-Tuned range, and pulling it straight off avoids marring the shaft's finish, which matters because a scored shaft can chew up whatever bearing it spins in afterward.
- Works with both brass and resin 8T pinion gears
- Compatible with any Type-130 motor
- Blue-finished body; Mini 4WD Grade-Up Parts No.422
- Listed chassis compatibility: Type 3 through ME (19 chassis)
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Mini 4WD Tuned Motors: Torque, Atomic and Rev Compared
Torque-Tuned 2, Atomic-Tuned 2 and Rev-Tuned 2 are the first published upgrades: RPM, torque and current, and which course type each is built for.