The APC AP04055E-B4 pack offers a ready set of 4x5.5E props suited to compact FPV racers and freestyle quads. Both rotation directions are included so you can assemble proper counter-rotating pairs for stable flight behaviour.
This kit supplies two normal-rotation and two reverse-rotation blades intended as replacements or spare parts for training and competition. Storing a backup set helps reduce repair time after impacts and keeps you flying between practice runs.
To fit, align each prop with the motor rotation and confirm the mounting interface on your prop adapter or nut is compatible. Inspect blades for cuts or deformation and replace any damaged piece to avoid excess vibration during flights.
Durability tips: inspect leading edges after each session and replace props that show stress or delamination. Balanced and undamaged APC AP04055E-B4 blades help maintain cleaner throttle response and longer motor life.
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