Carbon Tail Boom Brace for SX - Hirobo HI0404551  [HI0404551]

Tail boom carbon reinforcement

The HI0404551 tail boom brace by Hirobo is a lightweight carbon support assembly built to reinforce the tail boom region on compatible RC helicopters. It serves a structural role, cutting down flex to help maintain tail alignment under load and deliver more consistent tail response while tuning and flying.

Use this brace when the factory tail boom support feels marginal or when you want a stiffer, lighter connection between boom and fuselage. The part is offered as a common replacement compatible with the Eagle, Freya, EX, and SX families, intended for hobby-grade RC helicopter use only.

Fitting is usually a direct swap at the same mounting points; after installation, verify tail pitch and linkage geometry to ensure neutral alignment. The carbon construction improves stiffness without significant weight gain, but you may need to tweak gyro gain and link settings for best results.

This Hirobo carbon brace is a practical structural upgrade for flyers aiming to lower tail flex and stabilise tail inputs during setup and flight.