This is a Kyosho Ultima RB6.6 Kit. In order to stay ahead of maturing trends, Kyosho has updated the Ultima RB6 into the new 6.6 model. While maintaining the superiority of the race-proven suspension and steering of the RB6, the new 6.6 model features a selection of four different gearboxes: rear motor, 3-gear midship, 4-gear midship, and lowdown midship. In addition to the dependable rear motor for looser surfaces, the 6.6 includes midship transmissions for high-grip dirt surfaces and a new lower CG lowdown midship transmission for ultra high-grip surfaces like artificial turf and carpet. With detailed precision tuning capability, this vehicle excels on any surface type that a racer could face. In addition, the wider 7075-T6 grade main chassis with side guards has been left unchanged to deliver the cornering advantages of its width. When using the midship layout, either straight or sideways battery configurations can be used to further tune the chassis weight distribution.