Looking at Goldhanger on Google Maps, I cannot see any supermarkets or shops. Only one pub.
It does look very small. Really somewhere you would drive through. Residents would drive somewhere else to get there essentials.
There may have been a local off licence that would be a 5 minute walk.
So Bamber's testimony that the bike was brought for Julie to go shopping does not work.
She's not going to cycle miles for a loaf of bread. Any shop in Goldhanger to get one would be walking distance.