Servo # Description Weight Dimensions
(W x L x H)
Torque Speed Motor/ Bearings Street Price Notes
SL110 Super-Micro Servo 0.21 oz
(6.0 g)
0.45 x 0.77 x 0.83 in
(12 x 20 x 21 mm)
7.0 oz-in
(0.5 kg-cm)
0.08 sec
@ 60 deg
  $26.95  
SL260 Sub Micro Servo 0.32 oz
(9.1 g)
0.44 x 0.77 x 0.85 in
(11 x 20 x 22 mm)
15.4 oz-in
(1.1 kg-cm)
0.21 sec
@ 60 deg
  $22.95  
SL300 Micro Servo 0.60 oz
(17.1 g)
0.50 x 1.12 x 1.17 in
(13 x 28 x 30 mm)
30.4 oz-in
(2.2 kg-cm)
0.21 sec
@ 60 deg
  $19.95 small planes, gliders, throttle, throttle mixture, air retracts
SL451 Mini Servo, High Speed 0.80 oz
(22.9 g)
0.58 x 1.03 x 1.30 in
(15 x 26 x 33 mm)
48.0 oz-in
(3.5 kg-cm)
0.18 sec
@ 60 deg
  $22.95  
SL500 Standard Servo 1.55 oz
(44.3 g)
0.73 x 1.32 x 1.52 in
(yy x zz x yy mm)
47.0 oz-in
(3.4 kg-cm)
0.24 sec
@ 60 deg
  $12.95 Sport/Trainer aircraft, cars, trucks, boats
SL561 Std Servo, High Speed, BB 1.50 oz
(42.9 g)
0.73 x 1.37 x 1.51 in
(19 x zz x yy mm)
46.1 oz-in
(3.4 kg-cm)
0.18 sec
@ 60 deg
  $14.95  
SL571 Std Servo, High Torque, BB 1.35 oz
(38.6 g)
0.73 x 1.37 x 1.51 in
(19 x 35 x 38 mm)
62.4 oz-in
(4.5 kg-cm)
0.21 sec
@ 60 deg
  $17.95  
SL661 Low Profile, High Speed, BB 1.20 oz
(34.3 g)
0.88 x 0.92 x 1.74 in
(22 x 21 x 44 mm)
40.2 oz-in
(2.9 kg-cm)
0.15 sec
@ 60 deg
  $20.95  
SL680 Low Profile, Retract Servo 1.15 oz
(32.9 g)
0.88 x 0.92 x 1.74 in
(22 x 21 x 44 mm)
88.6 oz-in
(6.4 kg-cm)
1.12 sec
@ 160 deg
  $23.95  
SL851 Giant Pro FET Servo 5.10 oz
(145 g)
1.36 x 2.30 x 2.50 in
(35 x 58 x 64 mm)
180 oz-in
(13.1 kg-cm)
0.19 sec
@ 60 deg
dual bearings, coreless $44.95