Is a 1500W or 2000W 'peak' motor rating meaningful?

Peak wattage is a short-burst rating, not sustained output. Specialist-community threads we read repeatedly note that '1500W peak' bikes typically run on a 500–750W sustained hub motor, and that some advertised top speeds (35–40 mph) are not reachable by heavier riders on flat ground. Treat peak figures as marketing, not spec.