Firma 2800Kv Brushless Sensored Crawler Motor (SPMXSM3002)

Firma 2,800Kv sensored brushless crawler motor is a high-performance drive designed for 1/10-scale crawlers, rock racers, and trailers powered by 2S–3S LiPo packs. Built around a low-cog 4-pole, 8-magnet rotor, it features a CNC-machined aluminum housing, insulated high-purity copper windings, and a hardened 3.175mm (1/8") output shaft with precision bearings for durable, smooth operation. Preinstalled 3.5mm gold-plated bullet connectors simplify installation, while a waterproof sensor wire with a locking plug and gasket helps preserve performance in rugged conditions. A magnetic encoder provides rotor-position feedback for consistent three-phase signaling and precise control, with polarity protection to guard against incorrect wiring.

Designed as a drop-in upgrade for 540-size brushed motors that share the same diameter and mounting pattern, it fits crawlers that accept pinions with a 1/8-inch bore. The sensored design delivers precise throttle response and smooth power delivery, while the rugged construction and efficient windings support reliable, high-speed off-road performance in demanding applications such as rock bouncers and rock racers.