KO Propo BSx2-Response

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	30203
Category	Hobby
Discontinued	Yes
Performance
Torque	7.4V 251.41 oz-in 6.0V 213.91 oz-in Average
Speed	7.4V 0.09 sec/60° 6.0V 0.08 sec/60° Above Average
Physical
Weight	2.20 ozAverage
Dimensions	L 1.614 in W 0.787 in H 1.496 in
Case Material	Aluminum
Drivetrain
Motor Type	Brushless
Gears	Aluminum
Gear Spline/Teeth	23 T estimate
Rotation/Support	Single Bearing
Control & Signal
Programmable	Yes
Electrical & Environment
Operating Voltage	6–7.4 V
Power Source	LiPo / LiFe / Ni-MH
Origin
Country of Origin	Japan

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Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Compatible Hardware

Amazon eBay

*Spec is estimated from brand data.

Class Comparison

Torque	Average Stronger than 57% of 1294 Standard servos at 6.0V
Speed	Above Average Faster than 88% of 1290 Standard servos at 6.0V
Weight	Average Lighter than 41% of 2538 Standard servos

Performance Analysis

Shaft Power	4.94–5.17 W
Power Density	2.718 W/in³ More power-dense than 83% of 112 KO Propo servos
Torque Density	3.4280 oz-in/g Stronger than 57% of 38 KO Propo servos
Torque-to-Volume Ratio	112.57 oz-in/in³ Denser torque than 49% of 38 KO Propo servos
Speed-to-Weight	0.20032 (1/sec·g) Faster than 57% of 38 KO Propo servos
Speed-Torque Trade-off	17.11 Better balanced than 54% of 38 KO Propo servos
Torque Gain per Volt	12.52%/V More voltage-responsive (torque) than 29% of 29 KO Propo servos
Speed Gain per Volt	-7.93%/V More voltage-responsive (speed) than 4% of 29 KO Propo servos
Voltage Range Width	1.4 V Wider voltage range than 24% of 38 KO Propo servos