HSKRC MAK5 225mm Wheelbase 5mm Arm Thickness X Type 5 Inch Frame Kit Support DJI O3 Air Unit for RC Drone FPV Racing Precise details: Noitice: It is empty frame kit comes unassmebled, need build by buyers. NOT Include fc, esc, motors, camera etc. Specification: Brand: HSKRC Model: MAK5 ( Support DJI O3 Version) Name: 225mm Wheelbase 5 Inch Frame Kit flight controller position: 30.5x30.5mm Material: 3K carbon fiber Image transmission hole: 30.5x30.5mm / 20x20mm Top plate Thickness: 2.5mm Middle plate Thickness: 2.5mm Base plate Thickness: 2.5mm Arm Thickness: 5mm Motor hole position: 16x16mm Lens size: 20x20mm Inner space height: 25mm (high) Screw size: M2 & M3 Support blade: 5 inch propeller Weight: about 163g (including prints) Print Parts color: Green/ Red/ Black/Blue ( Optional) Features: 1. Full 3K carbon fiber body cut along the grain, chamfered, lighter in weight and higher in strength. 2. Quick-release arm design the arm can be easily replaced by removing two screws. 3. Wide X arm design stable and flexible flight attitude, quick release arm, convenient and quick field maintenance. 4. Newly designed high-strength aluminum parts the frame is fully compatible with the DJI O3 AIR UNIT air end. The new lens aluminum parts provide all-round protection, and the carbon fiber body has higher strength. Recommend Parts ( NOT Included): FC & ESC: MAMBASYS F405 MK2 Betaflight FC F40 40A 3-6S DSHOT600 ESC Stack Brushless Motor: iFlight XING-E Pro 2306 1700KV 3-6S Brushless Motor Propeller: HQProp DP5X4.3X3V1S Durable 5043 5x4.3 5 Inch 3-Blade Propeller VTX & Camera ( HD): DJI O3 Air Unit Digital System Lipo Battery: iFlight Fullsend 22.2V 1400mAh 130C 6S LiPo Battery XT60 Plug Package Included: 1x MAK5 Frame Kit