Just checked to see the Friends of Fallowfield Loop page, and there appears to have been a number of incidents, including someone’s stolen bike (stolen previously) appearing at the bridge where I was attacked. Also gang of seven under the bridge at Sainsburys.
I live in Fallowfield just north of the floop and there’s a lot of yoofs riding about on newish decent spec bikes (Trek, Specialized, etc) they most probably didn’t get down the LBS. Definitely makes me check twice when taking the good bike out into the car.