BetaFPV Beta85X 4K 4S Whoop Frame Upgrade Kit

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Upgraded Beta85X 4S 4K frame kit is customized for Beta85X 4K whoop drone. Added screw holes for installing F4 V2 4S FC and 4K canopy, can prevent ESC from loosening and also solve the adverse wear and tear reaction from ESC and FC caused by vibration. Thoughtful design of carbon brace, increased the stability of the frame. Also it has a customized battery slot to support 4S battery such as 450mAh 4S Battery.

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  • Carbon Brace: Be able to provide extra protection for the frame, reinforce the drone, avoid unstability caused by too strong power. 

  • Canopy Screw Holes: Added screws holes to fix the ESC and 4K canopy, can prevent ESC from loosening and also solve the adverse wear and tear reaction from ESC and FC caused by vibration.

    Frame Specifications

    • Color: Black
    • Material: Plastic
    • Wheelbase: 85mm
    • Motor mounting hole: for 110x motors(like 1105 5000KV motors)
    • FC mounting hole: fully compatible with whoop style FC board mounting pattern, 26mm*26mm
    • LED Holder available 
    • Weight: 10.3g

    Brace Specifications

    • Material: Carbon Fiber
    • Weight:2.6g
    • Thickness: 1.5mm
    • Suitable for all Beta85X frame


    • 1x Beta85X 4K Whoop Frame(Black)
    • 1x Stiffener Brace of carbon fiber
    • 1x 150mm battery cable tie
    • 2x No-Slip Rubber Pads