Just ended up with a bit of road rash, a sore hip, and a few stitches above my eyebrow. Mostly healed now. They tried to push off another cyclist behind me too. Apparently the motorbike was stolen, which probably makes it less likely they will find them.
My short commute last Wednesday made the local news:
https://www.bbc.co.uk/news/localnews/2645425-Hull/0#post_5af301e32bf832066771f3dc
https://www.hulldailymail.co.uk/news/cyclist-attacked-man-passing-motorbike-1548982