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Hirobo introduced the 4WD Alien Mid4 as its successor to the 4WD Zerda. While the chassis at first glance looks to be different than the Zerda, one ultimately notices that little has changed outside of the color (red to black). In fact, many parts are interchangeable between the Mid4 and its predecessor. The primary difference is that the transmission has gone from a belt driven system to a spur gear system (with exception of the front drive system). Also, the front steering system has changed to a "steering rack" type system. |