How soon can I put on a helmet and ride motorcycle after my necklift?

You have posted that you had this procedure 10 days ago.  This is about my time frame for car driving. However riding a motorcycle is much more active than diving a car.  For that reason, I usually recommend no motor riding for 3 weeks.  Call your surgoen's office and ask this question.  They are the one who will need to fix what you brake.

Thank you for your question. Please follow the recovery instructions provided by your board certified facial plastic surgeon, and feel free to reach out to your medical team with any questions.
Best wishes,

Its best to ask these questions of your surgeon.  I usually advise waiting about a month after surgery, although depending on how you heal, three weeks is also feasible.