Bottom Bracket Upgrade V2 for ALIGN T-Rex 250 Electric Series Helicopters

Product has been archived, and is no longer available for purchase.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



Included screws are standard #0-80 Button Head Socket Head Cap Screws (Class 12.9) and utilize a standard 1/32" (0.9mm) hex wrench included with original V1 kits or sold separately. ALIGN hardware (1.3mm hex) included with later version kits (DFC/SE) can be substituted as desired. New "V2" edition allows for easy access to the 3GX and other-brand Flybarless systems for programming and visual sight of the LEDs.


Material: Aluminum 6061-T6

Models: All ALIGN T-Rex 250 series (replaces stock ALIGN part #H25051B).


  • One (1) T-Rex 250 Series Aluminum Bottom Bracket Upgrade V2
  • Four (4) #0-80 x 3 mm Button Head Socket Head Cap Screws (Class 12.9)
  • Six (6) #0-80 x 6 mm Button Head Socket Head Cap Screws (Class 12.9)

Finish: Clear anodize, mirror-polish CNC gloss

Weight: 5 g (design is FEA optimized for maximum strength and minimum weight)


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