Gemfan 1209-4 31mm 4-Blade Props – Choose Shaft Size & Color (4 Pairs)

Product Description

The Gemfan 1209-4 31mm 4-Blade Propellers are engineered for superior control, smooth performance, and responsive throttle handling — ideal for Tiny Whoop and micro drones. The compact 31mm diameter and 4-blade design deliver outstanding grip and stable flight, especially in tight indoor environments or acrobatic freestyle flying.

These props come in three shaft sizes (0.8mm, 1.0mm, 1.5mm) and color options that pair beautifully with custom builds:

• Clear Gray (0.8mm Shaft)

• Midnight Gray (1.0mm Shaft)

• Clear Black (1.5mm Shaft)

Built from lightweight, crash-resistant polycarbonate, these propellers are perfect for 65–75mm class brushed or brushless 1S drones.

Each pack includes 4 pairs (8 total props) — 4 CW and 4 CCW.

Key Features:

• 31mm diameter and 0.9” pitch

• 4-blade design for maximum stability and cornering grip

• Available for 0.8mm / 1.0mm / 1.5mm motor shafts

• Ultra-lightweight and balanced for low RPM flight

• Polycarbonate construction for durability

• Press-fit design for easy installation

• Choose from Clear Gray, Midnight Gray, and Clear Black

Specifications:

• Size: 1209-4 (31mm x 0.9”)

• Blades: 4

• Shaft Hole: 0.8mm / 1.0mm / 1.5mm (variant-specific)

• Material: Polycarbonate

• Weight: ~0.32g per prop

• Mount: Press-fit

• Color Options: Clear Gray, Midnight Gray, Clear Black

Applications:

• Tiny Whoop and micro FPV drones

• Indoor freestyle and racing

• 65mm to 75mm 1S builds

• Brushed or brushless motors (depending on shaft size)

Package Includes:

• 4x CW props (variant selected)

• 4x CCW props (variant selected)

• Total: 8 props per pack

Explore more:

• All Gemfan Props

• Micro Props

 

 

Product Questions & Answers (FAQs)

Q1: What motor shafts are these props compatible with?

A: They’re available for 0.8mm, 1.0mm, and 1.5mm motor shafts — choose the right variant based on your motor size.

Q2: Are these good for indoor freestyle?

A: Yes, the 4-blade design offers better control and grip, perfect for tight-space flying and freestyle maneuvers.

Q3: What drone size are these made for?

A: They’re ideal for Tiny Whoop-style 65–75mm micro drones, both brushed and 1S brushless builds.

Q4: What’s the difference between the colors?

A: Each color represents a different shaft size variant and visual preference — functionally, all offer the same performance.

Q5: How many props do I get per pack?

A: Each pack includes 4 CW and 4 CCW props – a total of 8 props (4 pairs).