Firma 1900Kv Brushless Motor

The Spektrum Firma 1900 Kv Brushless Motor is built for powerful, efficient performance in 1/8 scale vehicles such as buggies, truggies and monster trucks. It features an 8‑magnet low‑cog rotor, durable Safe‑D shaft design, and high‑precision ball bearings for smooth reliability at 3‑ to 6 S power levels.

Features

• Low‑cog 4‑pole, 8‑magnet rotor for smooth, responsive throttle control
• Safe‑D 5 mm alloy steel shaft with C‑clip locking point to prevent pinion slip
• Pre‑installed 4 mm gold‑plated bullet motor connectors
• CNC‑machined aluminium housing with insulated high‑purity copper windings
• Designed for high-efficiency and long run-times

What’s in the box

• Firma 1900 Kv Sensorless Brushless Motor with bullet leads
• Instruction sheet / product manual

Needed to complete

• Spektrum Firma 130 Smart ESC or equivalent Smart-enabled ESC
• 3 S to 6 S LiPo battery (11.1 – 22.2 V)
• Compatible full‑range transmitter and receiver

Specifications

• KV rating: 1900 Kv
• Voltage input: 3S – 6S LiPo (11.1–22.2 V)
• Maximum continuous current: 60 A
• Maximum output: up to 4940 W (6 S)
• Efficiency: approx. 86%
• Motor size: 4274 (Diameter 42 mm × Length 74 mm)
• Shaft diameter: 5 mm (Safe‑D design)
• Weight: approx. 416 g
• Connector type: 4 mm bullet
• Poles: 4
• Bearing type: Precision ball-bearing