This item is used but in perfect working order.

The Hacker B20 Series motors are designed for R/C models, where an Ultra-light Motor system is required. From Slowflyers to Parkflyers to "400" Pylon models the Hacker B20 Series will achieve the highest level of flight perfomance in small models.

An excellent choice for the Zoom / Shogun / TREX and ARK Helicopters. It is designed to give the flyer plenty of power for aerobatic flying. Also works well on the Piccolo CP. The motor is a long casing motor.

Specs:
RPM: 3700 Kv
Shaft: 2.3mm