I purchased a newly built 550L Trex recently. Excellent build but was missing the linkage ball set. So I ordered the set from helidirect. Took a few days to get here but the weather has been heinous across America lately. So I forgive them that. Fortunately, they are a perfect fit and allowed me to continue finishing the assembly! I highly recommend them as a replacement for worn, broken or missing linkage balls. They are perfect replacements.
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James
Trex 500x linkage ball set
This is a great replacement for the original part. Helidirect was great to buy from.
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Tim H.
This a wear item so it is good idea to have spares both at the work bench and flying box.
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Felix R.
Excellent as usual.
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BRUCE C.
I had to order this because I ordered a 500 xt and it was missing 2 ball on the head, 1 scew in the tail, and no tail blades. They told me to call power heli. They did nothing