BetaFPV Air75 II frame (blue)

BetaFPV Air75 II Frame (Blue)

The BetaFPV Air75 II Frame is the next evolution of one of the most popular ultra-light whoop platforms in the hobby. After more than a year of Air75 setting the standard for agility and low weight, the new Air75 II takes things further with a refined 4 g design created together with the global FPV community. Lighter, tougher, and more responsive, this frame is built for pilots who want clean handling, reliable durability, and all-out fun in every pack.

The redesigned structure uses 4 arm braces instead of 6, combined with optimized duct geometry and a refined connecting structure. The result is a frame that reduces vibration amplitude, improves PID behavior, and delivers up to 11% more thrust compared to the previous generation. Whether you are into tight indoor lines or smooth freestyle outside, the Air75 II is made to feel locked-in and efficient.

Durability is just as important as performance, which is why BetaFPV uses an optimized PP material blend designed to absorb hard hits and repeated crashes. Smart pilot-focused details like motor screw protection, enlarged FC mounting holes, and a lower-profile duct design make this frame a practical upgrade for serious whoop enthusiasts.

Key Features

• Ultra-light 4 g frame with around 10% weight reduction compared to the first-generation Air75 frame.
• Up to 11% more thrust thanks to the reduced arm brace count and optimized duct aerodynamics.
• Improved PID response with a refined connecting structure that helps reduce frame vibration.
• Durable PP material blend built to handle crashes, impacts, and demanding freestyle sessions.
• Pilot-focused details including motor mounting sockets, motor screw protection, larger FC mounting holes, and a lower duct profile.
• Designed for 40 mm props and a 75 mm wheelbase whoop setup.

Specifications

• Product: Air75 II Brushless Whoop Frame
• Material: PP
• Weight: 4.00 g
• Wheelbase: 75 mm
• Motor Mounting Pattern: 3-M1.4-6.6 mm
• Flight Controller Mounting Holes: 25.5 × 25.5 mm
• Battery Slot Size: 16.3 × 6.3 mm
• Maximum Dimensions: 99.1 × 99.1 × 16.2 mm
• Color: Transparent Blue

Frame Diagram

Redesigned Frame: +11% More Thrust

By strategically reducing the number of arm braces from 6 to 4 and improving duct aerodynamics, the Air75 II generates 11% more thrust than Gen 1. That means snappier throttle response, better efficiency, and stronger overall performance for your brushless whoop build.

Reliable Flight Performance

After dozens of structural refinements, the final connecting-arm design effectively reduces frame vibration. Combined with feedforward tuning, this helps achieve an almost ideal PID step response for more precise control, cleaner lines, and silky-smooth freestyle flight.

Optimized Durable Material

The proven PP blend is ready for rough landings, concrete hits, and tree scratches. If you like to push your whoop hard, the Air75 II frame is built to take the abuse and keep coming back for more.

The Details Matter

Every gram and every mounting point has been carefully refined. The preserved motor mounting sockets support accurate alignment, the new motor screw protection structures help deflect impact forces during crashes, and the enlarged ø1.2 mm FC holes easily fit ø1.4 mm screws. It is a smart upgrade where pilot needs meet practical engineering.

In the Box

• 1 × Air75 II Brushless Whoop Frame