Mark4 5-Inch Freestyle Frame

The Mark4 5-inch is a robust H-frame designed for freestyle and long-range FPV builds. Constructed entirely from 3K carbon fibre, it offers a rigid platform that withstands heavy crashes while remaining accessible for field repairs. This frame accommodates both analogue and digital video systems, making it a versatile foundation for standard 5-inch powertrain setups.

Key features

• Independent 5 mm carbon fibre arms allow for rapid single-arm replacement without dismantling the central stack.

• Interlocking arm structure locks the geometry in place to minimise vibration transfer to the flight controller gyro.

• Dual stack mounting patterns in the centre and rear accommodate standard-sized electronics.

• Optional TPU 3D-printed (3DP) kit includes antenna mounts and protective bumpers.

Specifications

• Geometry: H-frame

• Wheelbase: 225 mm

• Arm thickness: 5 mm

• Top and bottom plate thickness: 2.5 mm

• Side plate thickness: 2.5 mm

• Stack mounting: 30.5x30.5 mm, 20x20 mm

• Motor mounting: 16x16 mm

• Camera mounting width: 19 mm

• Material: 3K Carbon Fibre

• Weight: 102 g (without 3D printed parts)

Pair this frame with 2207 or 2306 motors and standard 5-inch propellers for an optimal freestyle response. The ample rear deck space makes it simple to mount extended VTX units or dedicated GPS modules.