Cheetahs should be able to sort you out, Brighton ABAs put a removable one in their lower gym which is quite nice. Underground Gym has a shiny one (think it's Exigo). Fishersgate BC?
In the time it took you to start this thread, you could have Googled "boxing ring hire Brighton"
In the time it took you to start this thread, you could have Googled "boxing ring hire Brighton"
Cheetahs no longer has a ring. The rooms in tatters.
King Alfred has no ring anymore and looks like it's falling down. The stables had shut. Gym extreme in Worthing don't do it. Anywhere else ?