This is the Hobbywing EZRun 1/18 Scale 2030 Series 5200kV Brushless Motor. Let your mini racer or monster rip! The Hobbywing 2030 Series provides excellent options for 1/18 scale applications and provide excellent motors for those looking to step-up the speed. 

Features:

Specifications: 
kV: 
5200 (18T) 
Motor Diameter: 20mm 
Motor Length: 
30mm 
Shaft Diameter: 
2mm 
Shaft Length: 
10mm 
Weight: 46g