As a beginner with an X6² I broke nearly every front part, but as it's all B4 it's easy to borrow or find spares. If you have blue aluminum trailing axle they will break, replace with X-Factory tough-as-nails axles.
The only X-Factory spare you'll need apart from rear hingepins and wing mounts is a rear triangle just in case, if I remember correctly they are symmetrical (good idea).
Hope you'll enjoy it as much as I do.
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