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.
Beta85X 4K Frame
Stiffener Brace of Carbon Fiber
find more details about this Stiffener Brace of Carbon Fiber in another page