Savox SB-2270SG Brushless 32kg/7.4v.

These servos feature a redesigned motor/controller unit, and use a 'bullet proof' all steel gear set for unmatched strength. 

This servo comes equipped with dual ball bearings and an all steel gear train, yet weighs in at only 69 grams. 

Suitable for electric/nitro cars and electric aircraft.

Spec Check:

• 
  Dimensions: 54 x 20.2 x 38.7mm
• Weight: 69g
• Speed (sec/60°): @4.8v 0.19, @6.4v 0.15, @7.4v 0.12
• Torque (kg-cm/oz-in): @4.8v 21.0/291.6, @6.0v 25.0/347.2, @7.4v 32kg./444.4
• Gear: Unique Steel
• Case: Aluminium
• Bearing: 2BB