Master3X Modular 3-3.6″ Frame Kit

$36.99

Flexible Modular Design – fits O3 Air Unit and O4 Air Unit Pro
21mm ultra-thin frame
Injection Molded pads, side plates, buzzer mount, and receiver bay
X-Frame build on the Golden Ratio
Quick-Swap arms for lightning fast repairs

Frame Type

Clear

Free standard US shipping
Contiguous 48 states & DC · 4–7 business days total

30-day returns
Merchant-paid return shipping. Read the policy

Questions about this item? [email protected]

Product brand: RUNCAM

SKU: N09-C15-D5DB865175B0 Category: Frames & Mounts

The details

Meet your next everyday essential.

The

SpeedyBee Master3X Modular 3-3.6" Frame Kit
features a refined version of the classic modular design. The standalone VTX unit helps reduce costs and is compatible with the Bee25 and other models, offering greater building flexibility than ever before. Its unique, balanced head lock ensures that the props remain clear during flight, allowing for confident maneuvers without the risk of strikes. The new X-frame design has a low center of gravity, providing stable and sharp control that feels just right!

Check out all our
DJI O4 Compatible Frames, Electronics & Accessories
and all our
SpeedyBee products
!

Features

Flexible Modular Design – fits O3 Air Unit and O4 Air Unit Pro

21mm ultra-thin frame

Injection Molded pads, side plates, buzzer mount, and receiver bay

X-Frame build on the Golden Ratio

Quick-Swap arms for lightning fast repairs

Specifications

Wheelbase: 171mm

Top Plate: 2.0mm

Middle Plate: 2.0mm

Bottom Plate: 2.0mm

Arms: 4.0mm

Camera Pitch: 19/20mm

Stack Height Supported: 11mm

Stack Mounting Holes: 25.5 x 25.5mm

Compatible VTX:

Injection Molded Head: O3 Air Unit, Link, TX800, TX Ultra; Except for O3, other modules require additional 3D printed parts

O4 Pro Aluminum alloy head: O4 Pro

Propeller Size: 3-3.6 Inches

Motor Mounting Holes: 9-12mm

Weight: 87+/- 2g (without head)

Recommended Motor: 1507/1804/2004/2006/2105.5

Recommended KV: 4S 3000KV-3600KV, 6S 2200-2750KV

Max Battery Size: 67mm (L) x 31mm (W) x 40mm (H)

Recommended Battery: 4S LiPo / LiHv 750mAh-1100mAh, 6S 65-850mAh

GPS Supported Size: 18.1 x 18.1mm

Links

SpeedyBee Master3X Modular 3-3.6" Frame Kit Manual

Includes

1x SpeedyBee Master3X Modular 3-3.6" Frame Kit

Know the fit

Specifications & selected options

Item: Master3X Modular 3-3.6" Frame Kit
SKU: N09-C15-D5DB865175B0
Product brand: RUNCAM
Configurations: Choose an option above to see the details for that selection.

Stack Height Supported: 11mm

O4 Pro Aluminum alloy head: O4 Pro

Propeller Size: 3-3.6 Inches

Weight: 87+/- 2g (without head)

Max Battery Size: 67mm (L) x 31mm (W) x 40mm (H)

GPS Supported Size: 18.1 x 18.1mm

Choose & use with care

A few details before you begin.

Identify the aircraft and component

Identify the aircraft and component. Compare the actual item specifications and the supplied parts before choosing.

Match mounting and power requirements

Match mounting and power requirements. Compare the actual item specifications and the supplied parts before choosing.

Follow model-specific safety guidance

Follow model-specific safety guidance. Compare the actual item specifications and the supplied parts before choosing.

Follow the instructions supplied for the exact product. Features, limits and care directions are specific to the selected model.

Delivery, returns & support

Order preparation takes 1–3 business days, followed by 3–4 business days in transit: 4–7 business days in total. Standard shipping is free to the contiguous United States and DC, with no minimum order.

Request a return within 30 calendar days after delivery. We pay return shipping. After receipt, inspection and initiation of an approved refund take 5–7 business days.

Shipping Policy ↗Returns & Refunds ↗

Before you decide

Product questions

Where should I start when choosing drone & fpv accessories?

Identify the aircraft and component. Read the actual item description, included parts and options. The collection contains different models; a feature stated for one item should not be assumed for every product.

How do I check the size or fitting?

Match mounting and power requirements. Compare the dimensions and compatibility stated for the selected item with the space or equipment you intend to use. If a required measurement is absent, send the product name or SKU to [email protected] before purchasing.

Are different colors or configurations available?

Available choices are shown on the individual product page. Select the actual option labels before adding a variable product to your cart. Photos and specifications should be read together with that choice; availability is specific to the selected configuration.

What should I check before using an item?

Follow model-specific safety guidance. Follow the instructions supplied for the exact model. Do not assume that all items have the same materials, installation method, care directions or intended use.