The Ultra-Efficient MA Chassis The MA (Midship AERO) Chassis has its motor in to the center, and features a design which concentrates upon attaining outstanding aerodynamic performance. It offers six particular low-friction rollers, a rear skid club along side fast features developed because of many years of design experience. The single-piece monocoque framework additionally guarantees that assembling and maintaining the auto well-maintained is a task you can do by novices and veteran racers alike. The next, the MA chassis features a 3.5:1 gear ratio. Specs Length: 156mm Width: 97mm Height: 45mm Includes Torque-Tuned 2 engine PRO Simple snap-together assemblySeparately required ItemsR6/AA/UM3 batteries (x2)