MS vs MA Chassis: Which Should You Choose for Your Second Car?
Both use PRO motors, but modular MS and monocoque MA offer different ownership experiences. Choose the next car for what you want to learn.
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Browse available alternativesA replacement gear cover and battery-retaining part for the MS chassis, sold as a Mini 4WD Station limited item. The gear cover is secured with four screws rather than the kit-standard fitting, which increases chassis rigidity and helps resist chassis twist at high speed. It is molded in yellow-green, and can be paired with the matching item 95702 MS Color Chassis Set (Yellow Green) to colour-coordinate the full chassis. Mounting screws and washers are included.
Released around 25 April 2026, it's the newest colourway in this reinforced-cover line, following the fluorescent orange version (Item 95681) Tamiya put out roughly a year earlier — both are the same part functionally, differing only in plastic colour. Like all Mini 4WD Station limited items, it's distributed through Tamiya's network of Station retailers rather than general hobby-shop shelves. Swapping the snap-fit stock cover for this screw-mounted version is a common fix for MS chassis owners whose gear cover has started rattling loose or cracking around the battery-retaining tab from repeated battery swaps.
Both use PRO motors, but modular MS and monocoque MA offer different ownership experiences. Choose the next car for what you want to learn.
Check Mini 4WD MS chassis compatibility by the exact unit, body and part description. Learn why dual-shaft layout alone does not prove a modification will fit.
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