I've wondered the same thing, but I've been guessing about 5,000 lbs. I might be closer to 4,500 lbs depending on how dry weights are figured for Epic 22s and X22s. I'm sure somebody on the forum knows (but I don't). For what it's worth, here's my guess...

1999 Toyota Epic 22
Epic 22 & X22 Dry Weight..............................................2,800 lbs
Boatmate 2X Axle Trailer (2 spare tires & 1 hub)............1,230 lbs
Gear (skis, boards, boom, vests, parts, tools, anchor, etc)...500 lbs
Fuel Weight (27 gallons @ 6.1 lbs/gall)...............................165 lbs
Oil & Coolant Weight ...........................................................5 lbsTotal 4,700 lbs
I suspect the Epic 22 and X22 may have different Dry Weights where the X22 adds items like: a tower, speakers, mounts, inflatable ballast bags, plumbing, pumps, etc. that could be a couple hundred pounds. I assume the dry weight included probably represents the heavier X22 for a more conservative #. As an aside, this trailer has a G.V.W.R. of 6,000 lbs.
Most boats come with trailers made by Ameritrail. My Trailer Title's Shipping Weight is 1,150 lbs, but a spare, hub & mount were added later (guess 80 lbs).
I also guess: -200 lbs for single axle
-100 lbs for no spare tires & hub
Hope this helps!
