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.

I recommend following up with your surgeon about their recommendations for helmets after your necklift. To improve final results, we will often do a kybella and ultherapy about 4-6 weeks after neck lift to get more of an outcome. See an expert. Best, Dr. Emer

It can take several weeks or longer for swelling to fully dissipate and up to six months for incision lines to mature.  You might want to look into a good helmet strap that would give you a little more comfort. Most importantly, speak with your plastic surgeon so he or she can evaluate you and determine when you're ready to return to recreational motorcycle riding.   Drive safely and good luck!