Firma 4274 2250Kv Sensored Brushless Motor (SPMX-1046)

The Spektrum Firma 4274 2250Kv sensored brushless motor is a high-performance powerplant designed for 1/8-scale RC buggies and truggies that run on 3S to 6S LiPo packs. It features a low cog, four-pole rotor with eight magnets for precise throttle response and smooth, predictable power, housed in a CNC-machined aluminum shell with insulated high-purity copper windings and a hardened 5mm steel output shaft supported by precision bearings for durability and long life.

Built as a robust upgrade for competitive racers and rugged hobbyists, its sensored design delivers fine control at all speeds and efficient operation under load. It pairs well with the Spektrum Firma 130 Smart Sensored ESC, offering a cohesive, tunable power system for 3S-6S setups and reliable performance across a demanding range of applications.