Police are trying to track the man down.
The incidents happened in the Long Island City area.
Officers there say the same guy has groped six different women since mid-September.
Investigators say he rides up to the victims on his black mountain bicycle, gropes them and then leaves.
The youngest victim in this string of assaults is just 12-years-old.
If you know anything about the suspect, call CrimeStoppers at 1-877-577-TIPS.
