E-flite EFLM4025B Power 25 Brushless Outrunner Motor 1250Kv 3.5mm Bullet

Ideal for airplanes requiring up to 850 watts of input power
Equivalent to a 25-size glow engine for high-power airplanes weighing 3- to 5.5-pounds (1.4- to 2.5-kilograms) or 15-sized high-speed electric Formula One racers weighing up to 4 pounds (1.8 kilograms)
Includes mount, prop adapter and mounting hardware
External rotor design; the shaft can easily be reversed for alternative motor installations
High-torque, direct-drive alternative to inrunner brushless motors
Quiet, lightweight operation
High-quality construction with ball bearings and hardened 5mm steel shaft

Overview
Pilots demanding more speed and power from their motors should look at E-flite's Power 25 BL Outrunner Motor, 1250Kv. Delivering more power than the 870Kv Power 25 (and at higher RPM's), it was designed specifically for the NMPRA's EF1 electric pylon racing class.

The 1250Kv Power 25 BL motor was created for for high-power airplanes weighing 3- to 5.5-pounds (1.4- to 2.5-kilograms) or 15-sized high-speed electric Formula One racers weighing up to 4 pounds (1.8 kilograms).

Product Specifications
Application Aircraft
Bushing Or Bearing Bearing
Connector Type 3.5mm Bullet
Idle Current (Io) 2.00A
Input Voltage 11.1 - 16.8V
Maximum Burst Current 58A
Maximum Continuous Current 50A
Motor Design Outrunner
Motor Type Brushless
Outer Diameter 1.4" (36 mm)
Product Length 2.1" (53 mm)
Product Weight 0.4
Recommended Prop Range 8x6E to 8x8E (4S) or 8x8E to 10x10E (3S)
Resistance .02 ohm
RPM/Volt (Kv) 1250
Shaft Diameter 5mm (.20 in)
Voltage 11.1 - 16.8
Wire Gauge 14 AWG