RSx4S-one10X w/selector4s

No. 30138

The Servo model selector for 4S is included so you can easily switch between preset models.


#Torque: 12.5Kg-cm Speed: 0.09sec/60deg(@7.4V)
#Torque: 11.8Kg-cm Speed: 0.10sec/60deg(@6.0V)

#Dimensions: 40.5×26×21mm (Low Profile)
#Weight: 50.5g
#Servo Lead: 180mm
#Operating voltage: 6.0~7.4V (Lipo,Life,Ni-MH)
#The hard alumite aluminum gear
#Core-less motor
#Dual ball bearings
#The hard servo gear shaft
#The aluminum heat sink middle case
#Black cable
#Gold plated connector
#Serial Compatible
#HCS Compatible

#Recommend category
 1/10 EP on road, 1/10 EP Off road, 1/10 GP On road.   

Made in Japan.

  • Serial servo that inherits the performance of "Flection"

    This product is a low-profile servo equipped with a coreless motor. The motor, gears, and other mechanical parts have been inherited from the popular "Flection" for its ease of running. The weight is reduced by the plastic upper case. As the 4S series, it has evolved to support serial communication for super fast response performance. In addition, it now supports REAL TIME ICS, which allows ICS settings to be made from the transmitter.


    A supple and powerful driving feel that touches the road!

    It inherits the same driving feel that was popular with the Flection. The servo is not only based on the standard specifications of "Torque" and "Speed", but also focuses on "Inertia" to provide a smooth turning performance with less stalling while firmly gripping the road surface. With the delicate operation and enhanced torque of the newly developed core-less motor, we have acquired an unprecedented handling performance.


    Adopt the new generation coreless motor proven in Flection!

    A coreless motor that has demonstrated sufficient performance in Flection is used. The load on the ESC's BEC circuit is lightened, and the probability of the servo dropping out of power due to current consumption is drastically reduced. In order to take advantage of the motor's characteristics, the electrical circuit has been completely redesigned through repeated prototyping and testing.


    Implemented a "4S" system that supports serial

    The "4S" servo supports serial. By supporting serial, there are the following merits.

    (1) Ultra-high-speed communication dramatically improves response.

    The PWM method is the mainstream control method for RC servos. In the PWM method, the angle is specified by the width of the signal transmitted from the receiver. On the other hand, in serial communication, the servo angle can be specified numerically. In serial communication, the communication interval can be significantly shortened compared to the PWM method, and the interval from command to operation is greatly reduced. By combining with EX-NEXT's XT mode, we have achieved an unprecedented ultra-fast response as if you were just touching the machine.   

    (2) Servo parameters can be changed from the radio at hand

     The next-generation radio "EX-NEXT" is equipped with a telemetry (two-way communication) function."REAL TIME ICS" can be used by connecting the serial compatible servo "4S" to the B / S port mounted from the new receiver KR-420XT. Servo parameters can be set arbitrarily from the radio without having to collect the machine at hand. It's easier than ever to create a more flexible and in-depth settings without compromise.

    When using serial, connect to the B / S port of the KR-420XT in XT mode of EX-NEXT.


    Added "Frequency" as a new parameter

    This servo can change various characteristics to your liking by ICS, but "Frequency (FREQUENCY)" has been newly added from 4S. "Frequency" is a function to change the frequency of the motor built into the servo. By changing the frequency, the servoActivity changes. Direct feeling improves by lowering the frequency. The servo operation becomes active and the machine will bend sharply. The higher the frequency, the smoother the servo will move. The activity will be calm and you will be able to bend smoothly. Please select your favorite characteristics while changing the settings.


    Compatible with conventional systems (PWM)

    It can also be used in HCS, which has been well received, and in normal mode, which can be used for a wide range of models.


    The communication processing time between the receiver and the servo is compressed to 1/4, and it can be used with a direct operation feeling.


    [Normal mode]

    System used for servos and ESC’s that has been adopted formany years. It can be used with many receivers.


    The modes you can select on your servo depend on the transmitter and receiver you are using. Please refer to the table below.


    Serial / HCS / normal mode switching method.

    The servo automatically switches depending on the port connected to the receiver and the mode setting. No additional options are required for mode setting. If you want to use it serially, connect it to the B / S port of KR-420XT. Also, when using with HCS, it can be used simply by connecting to channels 1 to 4 set in HCS. The same applies to normal mode. Of course, it can also be used with the KR-418FH and other receivers that have been released so far. * Only KR-420XT can be used for serial mode. For conventional receivers, use HCS or normal mode.








    Easy-to-manage black servo wire

    Commitment extends to servo leads. The black cable, which looks tight, has the optimum softness for handling while ensuring the required current capacity.


    5 patterns of presets available

    Five presets are installed in the model memory of the one10X. You can use them properly according to the machine and road surface. Please use the servo model selector to switch the servo function that can handle various situations with one servo.


    Model 1: Settings that can be used for all purposes regardless of category(default)
    Model 2: ^
    Model 3: ^^

    Model 4: ^^^
    Model 5: ^^^^  *Increased holding force and torque


    Please use "Servo Model Selector for 4S" to switch models.
    <* The conventional servo model selector (No.61029) cannot be used.


    #Model Setting Sheet

    RSx4S-one10X can be changed each model parameter by connecting to EX-NEXT. Please use below sheet for your setting.

    LCD Xpansion unit 2 Parameters can be changed from EXP-201


    You can connect a servo to the Xpansion and set the characteristics to your liking by operating the Xpansion buttons. Compatible servos are all models equipped with ICS. Of course, it also supports this servo.



    * A separate power supply (6 to 7.4V) and twin extension wire cord are required. * This product does not support parameter changes by the servo manager connected to a PC.



    Servo x1
    Grommet x4
    Eyelet for servo case x4
    Screw for Horn x1
    Servo model selector for 4S x1

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  • Servos

    RSx4Sone10X setting data for Dirt off road.


    Servo Fitting Chart
    Fitting chart for various KO Servo.