spare arm wouldn't hurt, good stuff for 600GTReplaced the old unit as it was showing signs of corrosion,Hurricane 425 helicopter jakeopganeungham replace three of the Plata Ibanez
Working with the bearing clearance
Good Test Flight ResultsThe arms have the right lengst, the problem is the inner circle, where the flybar goes trough. The inner circle is a bit to high. You need to grind both sides and it will fit nicely.Not special. Good quality and good price.The one i received was machined too much and even with the spacers they put in it is still .80mm too small.