Apex-Style FPV Racing Drones 3"/4" Carbon Fiber Frame Kit – 150mm / 195mm Wheelbase with 4mm Arms for

This 3”/4” Carbon Fiber Frame Kit is a versatile, lightweight platform inspired by the iconic Apex design — perfect for micro racing, tight-space freestyle, or compact cinematic builds. With interchangeable wheelbases (150mm for 3" / 195mm for 4") and robust 4mm arms, this kit offers pilots the freedom to choose between agility and power, depending on prop size and motor setup.

Crafted from high-strength 3K carbon fiber, the frame delivers a rigid and durable structure with excellent vibration damping. The modular design allows for quick arm swaps and upgrades, while maintaining a low-deck profile for a centered CG and locked-in feel.

Designed to support both 20x20 and 25.5x25.5 stack mounting, this frame is compatible with analog and digital FPV systems like DJI O3, Vista, or HDZero Whoop boards. Camera mounting supports micro-sized FPV cameras (19mm) for a compact, clean build.

🔧 Key Features:

• Two size options: 150mm for 3” props, 195mm for 4”

• 4mm thick replaceable arms – lightweight but strong

• Apex-style geometry for balanced flight characteristics

• Compatible with 20x20 and 25.5x25.5 stack mounting

• Ideal for analog, DJI Vista/O3, or HDZero digital builds

• Micro camera mount (19mm width)

• Perfect for tight freestyle, racing, or sub-250g long-range setups

Whether you're building a powerful 3" ripper or a longer-range 4" cruiser, this Apex-style frame gives you the flexibility and strength to make your FPV goals a reality — all in one kit.