




Spektrum SPMXSM5400 Firma 4685 1450kv Brushless Motor with 8mm Shaft
The Spektrum™ Firma™ 4685 1450Kv Sensorless Brushless Motor is the perfect replacement option for the ARRMA® Limitless 120 RTR. This motor features a low-cog 4-pole rotor design, CNC machined aluminum housing, insulated high-purity copper windings, a high-quality alloy steel 8mm output shaft, and precision bearings for durability and smooth rotation.
Features
- Developed as a standard part for the Limitless 120 8S RTR (ARA7816), and compatible with the Outcast EXB 8S RTR (ARA5810V2T1) and Kraton EXB 8S RTR (ARA5808V2T1)
- Highly efficient design
- High-quality 4-pole sintered rotor
- 4S-8S LiPo power compatible
- Higher RPM, lower torque variant of SPMXSM1205
Specs
- Application: 1/7-1/5 scale, 8S Vehicles
- Connector Type: 6.5mm Bullet
- Motor Size: 4685-1450
- Motor Type: Brushless
- Number of Poles: 4
- Outer Diameter: 1.81" (46 mm)
- Product Length: 3.34" (85 mm)
- Product Weight: 775g
- RPM/Volt (Kv): 1450Kv
- Shaft Diameter: 0.31" (8 mm)
- Shaft Length: 0.86" (22 mm)
- Voltage: 12.0v-35.2V
Original: $193.17
-65%$193.17
$67.61Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Spektrum™ Firma™ 4685 1450Kv Sensorless Brushless Motor is the perfect replacement option for the ARRMA® Limitless 120 RTR. This motor features a low-cog 4-pole rotor design, CNC machined aluminum housing, insulated high-purity copper windings, a high-quality alloy steel 8mm output shaft, and precision bearings for durability and smooth rotation.
Features
- Developed as a standard part for the Limitless 120 8S RTR (ARA7816), and compatible with the Outcast EXB 8S RTR (ARA5810V2T1) and Kraton EXB 8S RTR (ARA5808V2T1)
- Highly efficient design
- High-quality 4-pole sintered rotor
- 4S-8S LiPo power compatible
- Higher RPM, lower torque variant of SPMXSM1205
Specs
- Application: 1/7-1/5 scale, 8S Vehicles
- Connector Type: 6.5mm Bullet
- Motor Size: 4685-1450
- Motor Type: Brushless
- Number of Poles: 4
- Outer Diameter: 1.81" (46 mm)
- Product Length: 3.34" (85 mm)
- Product Weight: 775g
- RPM/Volt (Kv): 1450Kv
- Shaft Diameter: 0.31" (8 mm)
- Shaft Length: 0.86" (22 mm)
- Voltage: 12.0v-35.2V












