Senton 4X4 Mega 550 SCTCall or e mail for shipping costs Fast, fierce, factory assembled and fully equipped, the 2S capable ARRMA SENTON 4X4 MEGA RTR Short Course Truck is ready to bash right out of the box. Its Spektrum STX2 radio with SRX200 receiver includes many of the same features found in high end 2. 4GHz radio systems throttle and servo reversing, throttle and steering travel adjust, throttle limiting and more. The 12T 550 brushed motor powers the SENTON 4X4 MEGA