This is a unit that allows you to modify your Mini 4WD car to a 6-wheel drive. It extends the rear unit of the MS chassis to 2 wheels. Create a unique machine and surprise everyone at the circuit! < Product Description > ・Prototype No. 3, based on Prototype No. 2, with minor adjustments to the gear positions. ・Only the set shown in photos 2-4 will be sent. Other photos are examples of installation and are not included in the product. ・Uses genuine Tamiya parts. ・For operational testing, the A parts, gears, shafts, and other drive components are provided in an assembled state. ■6WD Unit TN012 (Rear 4-Wheel Drive Unit) ・Bumper pre-cut. MS Flex compatible processing. ・The lower unit connection is fixed with adhesive to increase strength. ・There are scratches from processing. There are scratches because of a test run. ・The internal structure is not disclosed, but it applies GFIX technology. ・The connecting gear unit can be easily attached and detached by simply opening the gear cover of the connection part. (If you remove the gear unit, it will not drive, so it will be treated as a skid roller, and you may be able to enter Tamiya official races.) ・Reference (Photos 7-8): When full cowl roller stays are attached to the front and rear, the total length is 162-163mm, which complies with the regulations. ・Gears 3.5 and 3.7 can be used. (Only compatible with G22 pink gear) ・Due to the shaft spacing limitations, a tire diameter of 22.2mm or less is recommended. (Minimum ground clearance needs adjustment) ・Reference: Structurally, it can also be attached to the front, allowing you to create a machine like the Tyrrell P34 of yesteryear. (Flex processing of the center chassis is required) ・Reference (Photo 9): When attached to both the front and rear, an amazing 8-wheel drive can be achieved. (Just like Todoroki Special T-3, total length: 162mm) ■Other Parts ・Lightweight center chassis: New processing, never run. MS Flex is not applied, so please add processing using your preferred method. ・Other A parts, etc.: New parts are used. Please check the specifications and condition in the photos. This is a personally made item, so please refrain from bidding if you are extremely sensitive to the appearance. Returns and support are not available. Please consider this only if you can process and adjust it yourself. Please bid with the understanding of the above. ■Also listed elsewhere. Please understand if it sells out due to timing.