[Stall Torque]   
51.7kgs  (6.6V) / 58.0kgs  (7.4V) / 65.8kgs (8.4V)kg・cm
718.4oz (6.6V) / 805.4oz (7.4V) / 914.3oz (8.4V)oz・in
[Speed]
0.20 (4.8V)/0.15 (6.6V)/0.13 (7.4V)/0.11 (8.4V) Sec/60°
[Weight]
79 g / 2.79 in
[diemension]
35 x 20 x 40.5 mm / 1.38 x 0.79x 1.59 in
[Length of lead harness]
300mm
[Operating Voltage]
4.5V - 8.5V
■programmable
 Neutral, endpoint,gain etc(Works with PWM XBUS)120°150°180°(Works with PWM   XBUS)Synchronize(Works with PWM XBUS)
■Super steel full metal gear(Gear B brass)
■wide valtage
■BIG upperl ball bearing (12x6) bottom(10x6)
■Special desigen Brushress motor
 

Almost same size as S8911 . Easy to fit ARF mount size. Because OLD JR design was 21mm but our new design is 20mm.
<Best setting for super light Airplanes 
Ex .3D airplanes IMAC airplanes . Jets and composite small control surface >
Holding +5
Dumping +20
Dead band 0
Boost +100 to 200
You can adjust by JR TX or Our New programmer .
Stock setting is OK. But you can get more good feelings if you adjust.
 
The firmware in a 2k servo verifies the position of the servo arm two thousand times each second, 
while the firmware found in previous servos verify the arm's position one thousand times per second.
This greater number of verifications makes for a very precise servo, and gives it a more "solid" feel.
It is recommended to use a booster cable with 2k servos to ensure steady voltage at all times.