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Kopropo RSx2 Response H.C. (No.30106)

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This product is available for pre-order only

Product Description

The RSx2 Response H.C. (Hard Case) is designed for ultimate rigidity while still providing high speed. This servo comes ready to operate at 6V or 7.4V.Programming of this servo will also be available via PC for further fine tuning. Recommended for use on steering for 1/8th off-road buggy, 1/8th on-road and 1/10th GP on-road.


Speed: 0.06s @60°(7.4V)
0.07s @60°(6.0V)
Torque: 17.6 kg-cm(7.4V)
14.5 kg-cm(6.0V)
Size: 41 x 37.5 x 20 mm
Weight: 70.5 g




The original RSx Response/Power servos took a servo to a higher level upon it’s release. The RSx2 is the further development of the RSx series and we have raised the bar again. Gear and the aluminum case are within 0.01mm tolerance. Re-working of the servo amplifier has created a more linear feel with today’s faster transmitter systems.


The middle case is machined from one piece of aluminum that incorporates the gear pins and motor being held properly in place. The top case rigidity has been improved with the addition of two screws in the middle to prevent flex and keep the gears properly aligned. The upper Hard Case (H.C) is also machined from aluminum. H.C is the distinction of durability for categories that demand high stress.


A servo motor is a very important part of a servo. The specification of a servo is up to the motor being used. We have developed a new motor suitable for the new R/C standard with numerous performance and stress tests.


The gears are made with a special Japanese aluminum. This gear is 45% lighter than brass and has the same hardness as steel. The ‘Light Weight’ design provides a clean response for driving and reduces the burden on the servo motor. Power versions now include a stainless steel gear along with the aluminum gears to further increase the strength. The thorough quality control of the manufactured gears ensures the least amount of backlash possible for smooth action.

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