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Racerstar MG90S
Mini

Racerstar MG90S

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand Racerstar
Category Hobby
Performance
Torque
6.0V 30.55 oz-in
4.8V 25.00 oz-in Below Average
Speed
6.0V 0.08 sec/60°
4.8V 0.10 sec/60° Above Average
Physical
Weight 0.71 ozAverage
Dimensions L 0.90 in
W 0.48 in
H 1.12 in
Drivetrain
Motor Type Coreless
Gears Metal
Gear Spline/Teeth 21 T estimate
Control & Signal
Modulation Analog
Control System PWM
Electrical & Environment
Operating Voltage 4.8–6 V
Connectivity
Connector JR (Universal)
Wire Length 175 mm

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.

Class Comparison

TorqueBelow Average
Stronger than 10% of 80 Analog Mini servos at 4.8V
SpeedAbove Average
Faster than 86% of 81 Analog Mini servos at 4.8V
WeightAverage
Lighter than 41% of 165 Analog Mini servos

Performance Analysis

Shaft Power 0.46–0.71 W
Power Density1.459 W/in³
More power-dense than 93% of 163 Analog Mini servos
Torque Density1.2500 oz-in/g
Stronger than 13% of 80 Analog Mini servos
Torque-to-Volume Ratio51.67 oz-in/in³
Denser torque than 48% of 80 Analog Mini servos
Speed-to-Weight0.50000 (1/sec·g)
Faster than 74% of 81 Analog Mini servos
Speed-Torque Trade-off2.50
Better balanced than 13% of 80 Analog Mini servos
Torque Gain per Volt18.50%/V
More voltage-responsive (torque) than 81% of 55 Analog Mini servos
Speed Gain per Volt20.83%/V
More voltage-responsive (speed) than 82% of 56 Analog Mini servos
Voltage Range Width1.2 V
Wider voltage range than 3% of 88 Analog Mini servos

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