Born to race, these props have been designed to meet pilots demand for a stiffer propeller.
HQProp answers with in mind one thing and one thing only: to go faster!
Propeller Diameter: 5.1inch
Pitch : 4.2
Blades : 3
Material : Poly Carbonate
Hub Diameter :13mm
Shaft :5mm（ Compatible with POPO motor)
Adaptor Rings : NO