Top professional cyclists can maintain a power output of around 400-450 Watts for short durations of a few minutes (5 minutes). 300 Watt levels can be maintaine

Top professional cyclists can maintain a power output of around 400-450 Watts for short durations of a few minutes (5 minutes). 300 Watt levels can be maintained for time periods of a couple of hours (approximately). It appears this type of bicycle motor can maintain 250 Watts for around 30 minutes. Bottom line - it can make a massive difference to a cyclist performance.