RPM/Volt (Kv): 1400Kv. The Spektrum RC Firma Sensored 540 Brushless Crawler Motor is a great choice for 1/10 scale crawlers, rock racers, and trailers running on 2S – 3S LiPo power. This motor features a low cog 4-pole 8-magnet rotor design, a CNC machined aluminum housing, insulated high purity copper windings, high-quality alloy steel 3.175mm (1/8") output shaft, and precision bearings for high durability and smooth rotation.
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