Explorer LR 4 O4 PRO V2 is a 4-inch sub-250 micro long-range FPV drone built around the DJI O4 Pro Air Unit. V2 adds a redesigned camera mount with four custom damping balls to reduce vibration on newer O4 batches. With a 4S 750mAh pack, takeoff weight is about 246g. For longer cruising, pair it with FLYWOO 18650 3000mAh packs for up to about 28 minutes of flight.

FLYWOO Frame Kit

Explorer LR 4 V2 Frame Kit

Name: Explorer LR 4 V2 Frame kit & Parts
Brand: Flywoo
SKU: FW19005221
Price: 34.99 USD
Availability: InStock

A 52g frame kit for pilots who want to build LR 4 their own way. The V2 front end adds damping for O4-style cameras, while the center bay leaves room for the stack, VTX, GPS and Finder.

Frame only Carbon structure, TPU mounts, straps, pads and hardware.

Digital ready Fits DJI O4 Wide, O4 Pro and Walksnail Avatar Pro Kit layouts.

Serviceable Separate plates and arms make repairs easier after field use.

FLYWOO Explorer LR 4 V2 Frame Kit angled view

52g lightweight frame

Net frame weight for compact LR builds.

O3 / O4 Wide / O4 PRO / Walksnail Pro kit

Air unit support for flexible digital builds.

Motor Mount Hole

φ9mm / φ12mm motor mounting support.

Compact, lightweight design

Clean layout for a small long-range frame.

Quick Answer

A 52g LR 4 frame kit for clean digital long-range builds.

Explorer LR 4 V2 Frame Kit is a lightweight 4-inch FPV frame for pilots building their own LR 4 platform. It supports O3, DJI O4 Wide, DJI O4 Pro and Walksnail Avatar Pro Kit layouts, with a V2 front camera structure that uses four rubber damper balls. The center bay keeps planned space for FC + ESC, VTX, GPS and FLYWOO Finder.

For custom LR 4 builds Use it when you want the Explorer LR geometry but prefer your own stack, air unit and receiver setup.

Camera damping included Four rubber damper balls isolate the camera bay for O4-style front-end builds.

GPS and Finder positions reserved The rear hardware has planned spots for GOKU GM10 MINI GPS and FLYWOO Finder V1.0.

Frame Highlights

Five parts of the build that matter.

Frame structure, camera damping, installation space, GPS position and Finder placement, shown with the actual kit visuals.

Explorer LR 4 V2 Frame Kit structure and lightweight 52g layout

Structure & Weight

Clean frame structure, only 52g.

The LR 4 V2 frame uses separate carbon plates, front and rear arms, camera damping parts and TPU mounts. The frame weighs about 52g, and the exploded layout makes assembly and repair easy to follow.

Explorer LR 4 V2 camera structure close-up

Explorer LR 4 V2 camera damping front view

V2 camera damping structure

The front camera bay uses four rubber damper balls to calm down vibration around the camera. It supports a 20 x 20mm camera size and fits O3, O4 Wide, O4 Pro and Walksnail Pro kit layouts.

4 rubber damper balls
20 x 20mm camera support
O3 / O4 Wide / O4 Pro / Walksnail Pro kit support

Explorer LR 4 V2 frame installation space dimensions

Compact installation space

The center area stays compact without making the build feel boxed in. We recommend GOKU F722 MINI 45A STACK. The frame supports DJI O4 Wide Air Unit, Walksnail Avatar Pro Kit and O4 PRO Air Unit installation.

FC + ESC: 16 x 16mm / 20 x 20mm, 19.5mm height x 32.5mm width
VTX: 16 x 16mm / 20 x 20mm / 25.5 x 25.5mm, 19.5mm height x 43mm width

GOKU GM10 Mini GPS for Explorer LR 4 V2 frame build

Reserved GPS position

The frame reserves a rear GPS position for long-range builds. Use GOKU GM10 MINI GPS when you want a small module that keeps the wiring tidy.

FLYWOO Finder buzzer for Explorer LR 4 V2 frame build

Reserved buzzer position

The frame also reserves space for a buzzer. FLYWOO Finder V1.0 is the recommended match when you want recovery hardware installed neatly from the start.

Product Description

Explorer LR 4 V2 Frame Kit is a lightweight 4-inch FPV long-range frame kit for pilots building their own Explorer LR platform.

The V2 frame uses a revised camera damping structure with four rubber damper balls. This design supports O3, O4 Wide, O4 Pro and Walksnail Pro kit air unit installation.

The frame provides planned mounting space for FC + ESC, VTX, GPS and FLYWOO Finder, while keeping the structure light and practical to maintain.

Product Highlights

52g lightweight frame kit for 4-inch long-range FPV builds.
V2 damping camera structure with four rubber damper balls.
Supports O3, O4 Wide, O4 Pro and Walksnail Pro kit air unit installation.
Camera supports 20 x 20mm size.
Motor mount hole supports φ9mm and φ12mm.
FC + ESC mounting supports 16 x 16mm and 20 x 20mm hole patterns.
VTX mounting supports 16 x 16mm, 20 x 20mm and 25.5 x 25.5mm hole patterns.
Reserved mounting positions for GPS and FLYWOO Finder.
Includes TPU mounts, straps, pads, damper parts and hardware set.

Specifications

Product Name	Explorer LR 4 V2 Frame Kit
Category	4-inch long-range FPV frame kit
Frame Weight	Approx. 52g net frame weight
Camera Structure	V2 damping structure with four rubber damper balls
Camera Size Support	20 x 20mm
Air Unit Support	O3 / O4 Wide / O4 Pro / Walksnail Pro kit air unit installation
Motor Mount Hole	φ9mm / φ12mm
FC + ESC Mounting	16 x 16mm / 20 x 20mm mounting hole patterns
FC + ESC Installation Space	Approx. 19.5mm height x 32.5mm width
VTX Mounting	16 x 16mm / 20 x 20mm / 25.5 x 25.5mm mounting hole patterns
VTX Installation Space	Approx. 19.5mm height x 43mm width
Reserved Mounting Positions	GPS and buzzer / FLYWOO Finder mounting positions
Recommended Accessories	FLYWOO Finder V1.0 and GOKU GM10 Mini GPS

In the Box

Explorer LR 4 V2 Frame Kit

Top plate x 1
Center plate x 1
Bottom plate x 1
Camera damper plate x 2
Camera damper support plate x 2
Front arms x 2
Rear arms x 2
Side arm support x 2
TPU camera mount x 1
TPU TBS antenna mount x 1
TPU ELRS antenna mount x 1
TPU GPS mount x 1
TPU Finder mount x 1
Rubber damper ball x 4
TPU O4 Pro camera protector x 1
TPU dual VTX antenna mount x 1
Single VTX antenna mount x 1
TPU motor protector x 4
15 x 180mm battery straps x 2
Fiberglass protective plate for O4 Air Unit x 1
Battery anti-slip pad x 2
ESC insulation pad x 2
Hardware set x 1

FAQ

Frequently Asked Questions

Is this a complete drone or only the frame kit?+

This page is for the Explorer LR 4 V2 Frame Kit. It includes the frame plates, arms, TPU pieces, straps, pads, damper parts and hardware set. Electronics, motors, propellers, battery and air unit are not included unless a store bundle says otherwise.

What is the frame weight?+

The net frame weight is approximately 52g.

What is new about the V2 camera structure?+

The V2 camera mount uses four rubber damper balls to improve damping and reduce visible vibration from the camera area. It is suitable for O4 Wide / O4 Pro style builds.

Which air units does the frame support?+

The frame supports O3, O4 Wide, O4 Pro and Walksnail Pro kit air unit installation.

What motor mount holes are supported?+

The motor mount hole supports φ9mm and φ12mm mounting.

What FC and ESC mounting sizes are supported?+

The FC + ESC area supports 16 x 16mm and 20 x 20mm mounting hole patterns. The available installation space is about 19.5mm height x 32.5mm width.

What VTX mounting sizes are supported?+

The VTX area supports 16 x 16mm, 20 x 20mm and 25.5 x 25.5mm mounting hole patterns. The available installation space is about 19.5mm height x 43mm width.

Are GPS and Finder mounting positions reserved?+

Yes. The frame reserves mounting positions for GPS and buzzer / FLYWOO Finder. FLYWOO recommends FLYWOO Finder V1.0 and GOKU GM10 Mini GPS for this platform.

Are side arm supports included?+

Yes. The kit includes two side arm supports. They can be used when you want extra frame support for rougher conditions or windier flights.

What TPU parts are included?+

The kit includes TPU camera mount, TPU TBS antenna mount, TPU ELRS antenna mount, TPU GPS mount, TPU Finder mount, TPU O4 Pro camera protector, TPU dual VTX antenna mount and TPU motor protectors.

Where can I download CLI and STL files?+

CLI and STL files are available from the FLYWOO Support Center. Click here to view the download page.