The Ultra-Efficient MA Chassis The MA (Midship AERO) Chassis has its motor in the center, and features a design which concentrates upon attaining outstanding aerodynamic performance. It offers six specific low-friction rollers, a rear skid club alongside fast features developed as a result of years of design experience. The single-piece monocoque frame also guarantees that assembling and keeping the car well-maintained is a task that can be done by novices and veteran racers alike. Right here, the MA chassis features a 3.5:1 gear ratio. Specs Length: 156mm Width: 97mm Height: 45mm Includes Torque-Tuned 2 Motor PRO Easy snap-together assemblySeparately Required ItemsR6/AA/UM3 batteries (x2)