A man, who's believed to have been preying on women while riding his motorbike, has been arrested by Melbourne police.

Eleven victims have come forward after they were targeted as they walked or jogged along bike paths in Epping, Mill Park, Reservoir, Coburg and Thomastown from late December to early January.

Police on Wednesday arrested a 31-year-old Lalor man in connection with the attacks in Melbourne's north.

The man had groped women as he rode past or stopped and grabbed the women, police say.

Detectives seized a motorcycle as they arrested the man in a home in Melbourne's north.

One woman told of being bear tackled from behind before fighting the man off on a Mill Park running track in a public appeal for information on Tuesday.

The appeal sparked six more victims to come forward to add to the five reports which had already been made to police.