In the United States, the legal limit for an electric bicycle (Class 3) is 750W and 28 mph. The YK Builder v50, at 1500W nominal and 40+ mph, is legally a or "moped" in most jurisdictions.
Global Agent Contact: Evan Zhang
Email: evan.zhang@foxrenderfarm.com
Marketing Contact: Evan Liu
Email: evanliu@foxrenderfarm.com