Spektrum Firma 150A Smart Esc & 2050kv 4 Pole Brushless Motor 1/8 System #9698 August 23, 2024 admin Spektrum Firma 150A Smart Esc & 2050kv 4 Pole Brushless Motor 1/8 System #9698. Condition is “Used”, Condition is “Used”, marked as used due to being removed from a new rig that was parted out and it not being in package. Please view other rc items.