Firma 2100Kv Brushless Sensored Crawler Motor

The Firma 2100Kv Sensored brushless motor is a great choice for 1/10 scale crawlers, rock racers, and trailers running on 2S – 3S LiPo power. Featuring a low cog 4-pole 8-magnet rotor design, 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. Preinstalled with 3.5mm gold plated bullet connectors for easy installation. The Spektrum FIRMA 60A Sensored Brushless Smart Crawler ESC is required.
Features

Excellent upgrade for 540 brushed motors with the same diameter and mounting pattern (vehicle must accept pinions with a 1/8" mm bore)
Perfect balance of speed and torque, great for trail and scale crawling applications
High-quality 4-pole sintered rotor
Polarity protection - magnetic encoder inside the motor guarantees consistency between three phases’ signals and always outputs precise signals indicated by rotor position.
3.5mm Gold Plated Bullet Connectors
Waterproof sensor wire with locking plug and gasket
High-quality construction with precision ball bearings and hardened steel 1/8" shaft

Product Specifications
Outer Diameter     1.42" (36 mm)
Input Voltage     7.4 - 11.1V
Recommended Speed Control     Spektrum Firma 60A Sensored Brushless Smart Crawler ESC
RPM/Volt (Kv)     2100Kv
Maximum Continuous Current     38A
Motor Type     Brushless - Sensored
Product Length     2.27" (58 mm)
Motor Size     540-2100Kv Brushless Sensored
Connector Type     3.5mm Bullet
Application     1/10 scale crawlers, rock racers, and trailers running on 2S-3S LiPo power
Number of Poles     4
Shaft Diameter     0.125" (3 mm)
Water-Resistant     Yes
Bushing Or Bearing     Bearing
Forward     Yes
Reverse     Yes