Performance Tail Upgrade V2 for ALIGN T-Rex 550/600/700/800 Series Helicopters

Product has been archived, and is no longer available for purchase. This page is for reference only.



The Performance Tail Upgrade V2 provides superior tail control for sport and hard 3D flying styles. With dual flanged, radial ball bearing supported tail grips and a dual radial ball bearing, fully-supported thrust bearing tail rotor assembly, the new upgrade kit provides a truly slop-free, high-performance tail that is rock-solid for all maneuvers. The design is a simple retrofit for the common ALIGN parts on the helicopter, with the ability to be used on all T-Rex 550, 600, 700, and 800 series helicopters on the market and installed in a matter of minutes.

Design Notice: The latest ALIGN T-Rex Series "V2" Metal Tail Rotor Holder Assemblies (H50119A/B and HN6013A/B, characterized by clear-anodize) have a thicker rotor grip that can interfere with the outer-race of the flanged radial-ball bearing. The product Design Presentation (PDF) provides instructions for the required modifications to maintain the performance and aesthetic advantages of the KDE Direct design.


Material: Aluminum 6061-T6, Bronze SAE 660

Models: All ALIGN T-Rex 550, 600, 600N, 700, 700N, and 800 series (replaces stock ALIGN part #H60191A).


  • Two (2) T-Rex 550/600/700/800 Series Aluminum Tail Control Link V2
  • Two (2) SAE 660 Bronze Sleeve Bushings 2 x 3 x 3 mm
  • Two (2) Radial Ball Bearings 3 x 10 x 4 mm
  • Four (4) Flanged Radial Ball Bearings 2 x 5 x 2.5 mm
  • Two (2) M3 x 0.5 x 12 mm Button Head Socket Head Cap Screws (Class 12.9)
  • Two (2) M2 x 0.4 x 8 mm Socket Head Cap Screws (Class 12.9)
  • Two (2) M3 Flat Washers (Zinc-Plated Alloy Steel)

Finish: Clear anodize, brushed CNC matte


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