SpeedyBee Master3X 3-3.6 Inch 171mm Modular FPV Freestyle Frame

The SpeedyBee Master3X is a modular 171mm-wheelbase frame for 3 to 3.6-inch freestyle and racing quads. The video transmitter sits in a swappable head module separate from the stack, and a low centre-height X layout keeps handling sharp and predictable.

Key features

• Two head options: Injection Molded, which fits the DJI O3 Air Unit (RunCam Link, TX800 and TX Ultra need extra 3D-printed parts), or O4 Pro Aluminum Alloy for the DJI O4 Pro

• 2mm carbon top, middle and bottom plates with 4mm arms

• 25.5 x 25.5mm stack mounting with room for an 11mm stack

• 19/20mm camera mounting and 9–12mm motor mounting holes

• Battery bay takes packs up to 67 x 31 x 40mm; GPS mount for 18.1 x 18.1mm modules (other sizes need different printed parts)

• 87g ±2g without the head

Specifications

• Wheelbase: 171mm

• Prop size: 3–3.6 inch

• Plates: 2.0mm top, middle and bottom

• Arms: 4.0mm

• Stack mounting: 25.5 x 25.5mm, 11mm stack height

• Camera width: 19/20mm

• Motor mounting holes: 9–12mm

• Max battery size: 67 x 31 x 40mm

• Weight: 87g ±2g without head

Recommended power: 1507, 1804, 2004, 2006 or 2105.5 motors at 3000–3600KV on 4S with 750–1100mAh LiPo or LiHV packs, or 2200–2750KV on 6S with 650–850mAh packs.