Mini 4WD Gear Ratios Explained
Your Mini 4WD gear ratio decides whether you get acceleration or top speed. Compare 3.5:1 through 5:1 and learn which suits your motor and track.
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Tamiya Reinforced Gears w/Easy Locking Gear Cover(15438)
USD5.08
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Description
This set pairs two 8T pinion gears and two crown gears, all molded in carbon-fiber-reinforced nylon resin for greater durability than standard resin gears, with a newly designed rear gear cover for the Super-II chassis. The cover uses a lever-operated lock so it can be opened for gear maintenance without removing screws each time. Fitment splits by chassis family: Tamiya lists the Type 3, Type 4, Type 5, FM, Super FM, Super X, Super XX, MS, MA, FM-A, and ME chassis as able to use the pinion gears only, while the Zero, Super-1, Super TZ, VS, Super TZ-X, AR, and VZ chassis can use both the crown and pinion gears from the set. This split reflects differences in gearbox layout between Tamiya's older and newer chassis families, so it's worth checking which category a given build falls into before assuming the full set applies to it.
- Includes: 2x 8T pinion gears, 2x crown gears (carbon-reinforced nylon resin)
- Includes: Super-II chassis rear gear cover with lever-lock mechanism
- Pinion-only fitment: Type 3, Type 4, Type 5, FM, Super FM, Super X, Super XX, MS, MA, FM-A, ME chassis
- Pinion + crown fitment: Zero, Super-1, Super TZ, VS, Super TZ-X, AR, VZ chassis
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