Instruction:
-Use for T-REX 600N/600E/550
-Utilizes newly developed, highest spec and superior anti-wear material to increase
the overall strength and durability for torque tube drive gear.
Effectively minimize gear striping and crash damage.
-Must with Autorotation Tail Drive Gear set(H60020AA)

Specification:
-600 Front drive gear assembly x 1
-600 Long umbrella gear x 1
-600 Short umbrella gear x 1