BetaFPV AIR75 II Frame stiffener and protector mod

This frame stiffener significantly increases the rigidity of the Air75 II frame, allowing you to push your tune further—especially the master multiplier and D-term. Together, the frame and stiffener form a truss beam that resists bending and twisting, resulting in noticeably sharper flight dynamics. This also protects AIO indirectly as the frame is more rigid. Note: Installation requires screws that are 0.5mm to 1mm longer than stock.

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