Introduction: The XV-01 Pro incorporated a 4WD belt drive system with clever positioning of the RC electronic components with debris protection compartments. The all-new XV-02 Pro takes its 4WD drivetrain into a different direction by using a shaft-driven system with front mid-ship motor placement that incorporates equal length front and rear propeller shafts! XV-02 Chassis at a Glance: Comes with two 39T differential gears and one 40T differential gear for adjustment of front and rear drive balance. Use 39T gear (w/15T gear) on the front and 40T gear (w/15T gear) on the rear for drive balance bias to front and vice-versa for drive balance bias to rear. Features newly-designed parts such as gears, bathtub frame chassis, chassis cover, caster blocks featuring 6-degree caster angle, and bumpers with skid angles to reduce surface contact. Long aluminum dampers are employed at front and rear. A polycarbonate chassis cover with wheel well liners help prevent dirt and dust from getting inside. Suspension arms and front uprights are based upon the XV-01 chassis kit. Comes with rally block tires and wheels. Features a longitudinal battery pack position in the center-left for optimum balance. The motor mount, propeller shafts, input and center shafts, and urethane bumpers have new metal parts. Overview: OVERVIEW_TEXT : Differential Gears Comes with two 39T differential gears and one 40T differential gear for adjustment of front and rear drive balance. Battery Mount Features a longitudinal battery pack position in the center-left for optimum balance. Caster Blocks Features newly-designed parts such as caster blocks featuring 6-degree caster angle