SpeedyBee Master3X O4P Frame - with Aluminum Alloy Head

The SpeedyBee Master3X Frame O4P is a modular high-performance platform for 3–3.6" freestyle builds. Featuring a lightweight yet crash-resistant carbon fiber frame, premium carbon arms, and an interchangeable aluminum head – designed for the DJI O4 Pro Air Unit and compatible with the Bee25 series – it offers exceptional flexibility. Ideal for pilots who demand agility, durability, and quick repairs without compromising on performance.

Features

• Modular Aluminum Head:The front section, made of aluminum alloy, is specifically tailored to the DJI O4 Pro Air Unit and is also compatible with other heads from the SpeedyBee Bee25 series. The entire module can be replaced quickly and easily – without the need for a complete rebuild.
• Durable and Lightweight Carbon Fiber Chassis: The frame is built with exceptionally resilient 4 mm thick carbon arms and 2 mm sandwich plates. Weighing only around 87 g (excluding the head), it remains agile and stable in the air even during hard crashes.
• Perfect Size for 3–3.6" Builds: Supports 3–3.6" propellers, features a wheelbase of 171 mm, and is designed for motors with a 9–12 mm mounting pattern – ideal for compact freestyle and cinewhoop configurations.
• Optimized for Digital FPV Systems: Includes a vibration-damped mount for the DJI O4 Pro Air Unit, along with flexible, injection-molded components for additional head modules. Also suitable for analog VTX or alternative Air Unit setups.
• Spacious Electronics Bay: Compatible with 25.5 × 25.5 mm stack platforms with a maximum build height of up to 11 mm. Accommodates battery formats up to 67 × 31 × 40 mm. GPS mounting options are also integrated.
• Balanced X-Design: The optimized arm geometry delivers an ideal balance between agility and stability – with a clear, unobstructed view free from propellers in frame. For a pure FPV experience and precise flight performance.

Specifications

• Motor to motor: 171mm
• Top plate: 2.0mm
• Bottom plate: 2.0mm
• Arms: 4.0mm
• FC mounting holes: 25.5mm x 25.5mm
• Motor mounting holes: 9mm-12mm
• Camera installation space: 19mm/20mm
• GPS Mounting Space: 18.1 mm × 18.1 mm (other sizes require separate printed parts).
• Maximum Supported Battery Size: 67 mm (L) × 31 mm (W) × 40 mm (H)
• Suitable propeller size (max): 3"-3.6" Propeller
• Weight:
  • 87±2g (with Head)
  • 103±3g (without Head)

Shipping content

• 1 x SpeedyBee Master3X O4P Frame - with Aluminum Alloy Head