if both they and you were on the road, you both have equal priority. they dont have to make room for you, and you dont have to mke room for them If they were riding forward, they would not have seen you coming i guess. If you were going faster than them, just keep going faster than them and overtake them.
"this were all dress in the riding gear ,dark Glasses, Hundreds of pounds worth of bikes,it is beyond belief " what has the price of their bikes or what they were wearing have to do with anything? How much did your wheelchair cost?? is it relevant?
Lastly what's a sproker