This is the Flux Scream 1/8 scale Brushless Motor from HPI.
FEATURES

Designed to be used with the HPI Flux Rage ESC
Machined aluminum case

INCLUDES

Flux Scream Brushless Motor with 12 AWG Leads and 6mm Male Bullet
Connectors

SPECIFICATIONS

Diameter: (42mm)
Length: (68mm) without shaft
Shaft Diameter: (5mm)
Shaft Length: (18.5mm)
Weight: 12.1oz (345g)
kV Rating: 1965kV