The Savox SH-0253 micro, digital servo has a nice balance of torque and speed in addition to using a combination of industrial plastic and metal gears for added durabilty and smoothness.

Features:

• Aluminum middle case allows for cooler operating temperatures.
• Industrial plastic and metal gear train ensures durability and longevity.
• Ideal for small planes, and 450 size helicopters.

Specifications:

• Torque @ 4.8v - 1.8kg/25.0oz-in
• Torque @ 6v - 2.2kg/30.6oz-in
• Speed @ 4.8v - 0.13 sec/60 deg
• Speed @ 6v - 0.09 sec/60 deg
• Dimensions L x W x H (mm):22.8 x 12.0 x 25.4
• Weight: 13.6g