You are looking for some powerful control
We developped these servos with the basher in mind, ultimate digital power, precision and reliable.
Check out these awesome features

Features:

• Full CNC machined alloy case
• Digital LHV 5.0 - 8.4V
• Metal gears
• Ball Raced
• Core DC motor
• High speed and torque
• IP67 Waterproof

• Voltage range 5.0 - 8.4V
• Speed @ 6.0V 0.15 sec/60°
• Speed @ 7.4V 0.13 sec/60°
• Speed @ 8.4V 0.11 sec/60°
• Torque @ 6.0V 17.7 kg/cm
• Torque @ 7.4V 23.6 kg/cm
• Torque @ 8.4V 27.3 kg/cm
• Dimensions (mm) 40.4x20.4x36.7
• Weight 75g / 2.55oz