Tridagger XX 18629: What the MS Kit Includes
Tridagger XX is item 18629 in Tamiya's Mini 4WD PRO Series. It brings Ryo Takaba's angular Tridagger design onto a three-piece MS chassis with a central double-shaft motor. That is a useful distinction when searching for “Tridagger”: other releases can carry similar names or styling while using different chassis. Here we focus on what the 18629 assembly kit actually specifies, how its nose and wheel details affect the build, and what to check before the first run.
Identify the body and the exact release
The box is catalogued as Mini 4WD PRO Series No. 29. Tamiya connects the machine with Ryo Takaba in Bakuso Kyodai Let's & Go!! and calls out its boxy front fenders and unusually shaped rear wing. Those are the visual signatures that distinguish it from smoother, lower PRO bodies. This is an assembly kit for a running Mini 4WD car, not just a replacement body shell. The photo on the official page depicts the assembled model; use the item number to verify a shop listing when comparing similarly named Tridagger variants.
The design relationship is a reason to choose 18629 if you are collecting a character machine. It is not evidence that the car has the performance shown in a story. On an actual course, the motor, wheel seating, axle alignment and setup matter. The fixed facts for this box are more useful than an anime claim: Tamiya publishes a 152 mm length, 92 mm width, its N-02 nose unit and small-diameter tyre setup.
MS chassis and N-02: what the kit specifies
MS divides into nose, centre and tail sections. The double-shaft motor sits in the centre and drives the front and rear axles through that platform's own gear train. The 18629 product page explicitly names an N-02 nose unit. That does not mean every MS kit has an N-02, so keep the supplied nose with this build and check the fit of a proposed replacement against the relevant MS parts catalogue. The included wheels are red three-spoke pieces carrying small-diameter tyres. Their colour and size are box details, not universal features of an MS car.
Tamiya describes the MS sections as easy to assemble without glue and includes the double-shaft motor. Its item page does not state a stock gear ratio or height for 18629. A generic MS reference number would be an unsafe substitute because boxed kits differ. If gearing is the reason you are selecting a kit, consult the physical instructions and parts in the current box before making a ratio-dependent purchase. Our MS compatibility guide explains how to check parts across MS variants rather than assuming common contents.
Build the supplied car before changing it
Two R6/AA/UM3 batteries are needed separately. Lay out the three chassis sections, double-shaft motor, nose unit, wheels and body before snapping the centre assembly together. Follow the kit's gear orientation carefully, then check that the nose and tail are fully seated. A partially joined unit can make the drivetrain feel rough even when the parts are correct. Turn the wheels gently before installing batteries; they should move without a hard stop or visible rubbing against the body.
Fit the red wheels and tyres evenly. Verify that the broad front fenders and rear wing clear the tyres and any stock hardware through a full hand rotation. Save the box and instructions if you may change the nose or body later: the item number and original parts layout make it easier to reverse an experiment. For maintenance or tune-up work after a clean baseline, see our MS chassis tuning guide.
When Tridagger XX is a good fit
Choose 18629 when the distinctive Tridagger body and a three-unit MS assembly are the combination you want. The included N-02 nose and small red wheels give you a specific starting configuration. If your priority is a different motor layout, do not buy on the body name alone: MS uses the PRO double-shaft motor, while rear-motor families such as Super-II and VZ use single-shaft motors. Parts selected for one shaft format cannot be assumed to fit the other. The best first test is a careful stock build on a suitable track, followed by one measured setup change at a time.
See Tridagger XX 18629 at Monkee Mods for current availability.
Frequently asked questions
Does Tridagger XX include a motor?
Yes. Tamiya lists a double-shaft motor; two AA batteries are purchased separately.
What gear ratio comes in 18629?
The official item page does not state one. Verify the supplied gears in the box or instructions instead of borrowing a ratio from a different MS kit.
Source checked 26 September 2026: Tamiya's official item 18629 page. Boxed specifications may change; the store page displays live availability.