The HS-85BB features a high power motor for greater speed and torque. The HS-85BB is the choice of modellers looking for a high performance servo without breaking the bank. The ball bearing supported output shaft and sturdy gear trains are preferred for smaller glow and electric airplanes, helis and sail planes and small boats. Key Features High torque and precision centering Strong resin gear train Ball bearing-supported output shaft Perfect for applications where a standard servo is too heavy or large but standard torque is required Weight 19.2g 0.68oz Product Height 30mm 1.18in Product Width 13mm .51in Product Length 29mm 1.14in