2026 Forest River IBEX16MRJ

The IBEX 16MRJ has 1,802 lbs of cargo capacity between 3,778 lbs dry and its 5,580 lbs GVWR, 32% of that rating; filling its 30-gallon fresh tank at 8.3 lb a gallon uses 249 lbs of it (how to read trailer weights).

Tongue weight is 480 lbs, 13% of the dry weight as published; it rises as the trailer is loaded and counts against the tow vehicle’s tongue-weight and payload limits (tongue weight by size).

Off hookups: 60 gallons of grey and black capacity against 30 gallons of fresh water, so fresh water runs out first (tank sizes by length).

Against the rest of the IBEX roster this is the 1st of 16 floorplans by dry weight, in a line that runs from 3,778 lbs to 6,733 lbs. It is the lightest plan in the line, which makes it the one to look at first if the tow vehicle is the constraint.

Plan the tow on loaded weight, not the 3,778 lbs dry figure: half the published cargo capacity brings this plan to about 4,679 lbs, and the published GVWR of 5,580 lbs is the limit (how to read trailer weights).

Forest River’s line listing and this floorplan’s own factory page agree on all 4 shared figures. Dry weight plus cargo capacity equals the published GVWR exactly. A missing row means Forest River does not publish that figure (how figures are verified).

Forest River's own description of this floorplan reads: “The 16MRJ is a rugged yet refined travel trailer that delivers full-feature comfort in a compact, adventure-ready design. A front queen bed offers a restful retreat, while the central kitchen and lounge area make meal prep and relaxation effortless. Outside, a 12' awning and easy-access storage keep you connected to the outdoors. Lightweight, durable, and built for exploration, the 16MRJ couples the perfect…” That is the factory's marketing copy rather than a specification, and nothing in it is treated as a verified field on this page - layout descriptions, sleeping arrangements and feature claims in factory copy are not carried into the spec table unless the factory also publishes them as specifications.

How the 16MRJ differs from the other fifteen IBEX floorplans. Most distinctive first. How these ranks are worked out.

• Dry weight, 3,778 lb: lightest of sixteen; next is the 16MKS (4,013 lb).
• Cargo capacity, 1,802 lb: largest of sixteen; next are the 16MKD, 19BRK and eight others (1,500 lb).
• Cargo capacity as a share of GVWR, 32.3%: largest of sixteen; next is the 16MKD (27.2%).
• Tongue weight, 480 lb: lightest of sixteen; next is the 16MBJ (485 lb).
• Length, 19 ft 10 in: shortest of sixteen; next is the 16MKS (20 ft 6 in).
• GVWR, 5,580 lb: fourth-lowest of sixteen, between the 16MKD (5,523 lb) and the 16MBJ (5,585 lb).
• Exterior height, 10 ft 10 in: shared with the 16MBJ, 16MKD and 19QRB; of sixteen, three lower and nine taller, nearest the 19BRK, 19MBH and 19MSB (10 ft 9 in) and the 16MKS, 20FKDS and seven others (11 ft 3 in).
• Fresh tank, 30 gal: smallest of sixteen, level with the 16MBJ, 16MKD and four others; next are the 16MKS, 20FKDS and seven others (40 gal).
• Tongue weight as a share of dry weight, 12.7%: shared with the 20MDS; of sixteen, six smaller and eight larger, nearest the 19BRK (12.5%) and the 19MBH (13%).
• Grey tank, 30 gal: smallest of sixteen, level with the 16MBJ, 16MKD and five others; next are the 16MKS, 20MDS and three others (40 gal).

Next to the 16MKS, the nearest heavier floorplan by dry weight, the 16MRJ is 235 lb lighter by dry weight, has a GVWR 655 lb higher, has 890 lb more cargo capacity, has a tongue weight 45 lb lighter, is 8 in shorter, stands 5 in lower, has a fresh tank 10 gal smaller and has a grey tank 10 gal smaller; the two publish the same black tank.

IBEX is Forest River's lightweight four-season travel trailer, built at the company's Outdoors RV-adjacent end of the travel-trailer range rather than in the value tier. The roster runs from a 16-foot single-axle at under 4,100 lb dry to a tandem-axle 26-footer. Forest River publishes a full weight and capacity block for every floorplan, which is why this line could be catalogued completely rather than partially.

A full 30-gallon fresh tank is about 249 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 14% of the 16MRJ’s 1,802 lb cargo capacity, leaving 1,553 lb. Across 16 IBEX floorplans the water share runs 14% to 36%, and this plan’s is the lowest. Nearest on that share: IBEX 16MKD at 17%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).