You bet-
Looking at the weight capacities/space on the trailers and some old photos, it looks like you could probably fit a Mk19 or .50 cal on a group of three- one for the gun mounted in it’s pintle/cradle and maybe a spare barrel; one for the tripod, T&E, and sights; and one for ammo, plus a can or two on the other trailers. That gives you a three man gun team carrying a couple hundred rounds of ammo with a squad leader riding on a bike it hour a trailer to enable pulling ahead to scout emplacements. An AT team could be as easy as two bikes with a gunner carrying an Carl Gustaf/RPG or (gulp) Dragon and an ammo bearer carrying additional rounds in panniers or slung from the rider/frame; alternatively they could have a trailer(s) to carry additional rounds or resupply from the trains.
The below article is about e-bikes, but could be a prototype for regular cycle ops as well as long as your bear in mind the physical demands:
https://www.rferl.org/a/ukraine-elec.../31865559.html