Constable Romans said he knew the bikes didn't belong to the young people because of the retro style and the non-satisfactory explanation they gave police when questioned.
The bikes were then seized for further inquiries.
However, before police had the opportunity to make such inquiries, Constable Romans said he read Saturday's Hawke's Bay Today Weekend article about the Coonrods' missing bikes, and connected the dots.
Constable Romans said if it weren't for both the "eyes and ears" of the neighbour who reported the suspicious behaviour and the Coonrods reporting the missing property, the police may not have been able to return the bikes.
"Everything just clicked. If the resident hadn't reported the suspicious behaviour we wouldn't have recovered the bike, and if the couple hadn't reported their property missing we wouldn't have known it was theirs," he said.
"It was great because as police we not only want to apprehend offenders but also return stolen property to victims."
Constable Romans said the couple were "rapt" when he rang yesterday morning and told them he had their bikes.
"They were rapt. When I rang Evie was delighted. They weren't sure they would see their bikes again," he said.
The Taradale pensioners said they are "absolutely thrilled" to have their beloved bikes returned to them.
"It's pretty vigilant of police to spot that, how good is that? I'm going to bake the police a big cake to say thank you," Mrs Coonrod said.
Mrs Coonrod said she has been "overwhelmed" with the generosity that has poured out for the couple since they reported their bikes had been stolen.
"It's a lovely ending to the whole thing, and it brought out wonderful things in people," she said.
Constable Romans said the youths involved in the incident were referred to youth services.
