HQ Racing Prop R42 (2CW, 2CCW)

Racers asked for a slightly stiffer and faster version of the popular HQ 5.1×4.1×3

This is the answer from HQ!

This prop was designed having in mind only one thing, RACING!

Specifications

• Propeller Diameter: 5.1inch
• Pitch : 4.2
• Blades : 3
• Material : Poly Carbonate
• Weight :4.9g
• Hub Diameter :13mm
• Hub Thickness:7mm
• Shaft :5mm（ Compatible with POPO motor)
• Adaptor Rings : NO