Injora Purple Viper 1721 Brushless Motor for 1/24 SCX24

Updated on Jun 10, 2026 05:40:49 PM

INJORA Purple Viper 1721 Brushless Motor for 1/24 SCX24

Compatibility Notice:

ESC: Only compatible with INJORA MBL32 ESC and QuicRun Mini24 ESC. Not compatible with other ESCs!
Transmission:  Only compatible with stock SCX24 transmission and INJORA metal transmission
Chassis: Not compatible with carbon fiber chassis with angled skid plate. For stock SCX24 chassis, the ESC tray must be trimmed to fit the motor.
Battery: 3S batteries are highly recommended for optimal performance and smoother low-speed control.


Note: 

Some noise at mid-throttle is normal for the 1721 motor due to its high-speed, open-rotor design. This does not indicate a defect.
The 1721 Purple Viper is best for rigs under 700g. For heavier rigs, we recommend the 2204 Fat Viper for stronger drag brake performance.


Features:

Smooth and linear at low speeds, powerful and aggressive at high speeds.
Runs more quietly than brushed systems, producing virtually no noise.

Equipped with a mounting plate to mount the motor on the SCX24.



1721 Motor Specifications:

Model Number: 1721
Motor Type: Sensorless Brushless Outrunner
RPM/Volt: 2800KV
Motor Poles: 14
Motor Slots: 12
No-Load Current (11.1V): 0.7A
Max Current: 20A
Motor Connectors: PH2.0 3Pin
Dimensions: F16.7*20.9mm
Motor Output Shaft: F1.7mm
Motor Pinion: 0.3mod 12T
Weight: 19g
Waterproof: Yes


Package List:

1 * 1721 Brushless Motor
1 * Motor Mount

- Injora Purple Viper 1721 Brushless Motor for 1/24 SCX24