2026 East to West Longitude185RB

The Longitude 185RB leaves East to West's factory at 5,293 lbs dry, with a published GVWR of 7,740 lbs and 2,447 lbs of cargo capacity between the two. Cargo capacity is 32% of the loaded rating, and East to West's own definition is worth reading before you plan against it: cargo capacity is what remains for fresh water, gear, food, batteries and every dealer-installed accessory. Fresh water alone is 8.3 lb per gallon, so filling this trailer's 53-gallon fresh tank spends 440 lbs of that 2,447 lbs before anything else is loaded.

Tongue weight is 740 lbs, 14% 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: 90 gallons of grey and black capacity against 53 gallons of fresh water, so fresh water runs out first (tank sizes by length).

Against the rest of the Longitude roster this is the 1st of 8 floorplans by dry weight, in a line that runs from 5,293 lbs to 8,033 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 5,293 lbs dry figure: half the published cargo capacity brings this plan to about 6,517 lbs, and the published GVWR of 7,740 lbs is the limit (how to read trailer weights).

East to West’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 East to West does not publish that figure (how figures are verified).

East to West publishes no floorplan description for this plan in the channel this page is built from - only the numeric specification block. Rather than describe a layout from the floorplan code, which would be a guess dressed as a fact, this page carries what the factory publishes and says where it stops. 185RB is a Longitude designation and this site does not decode it into a layout claim.

How the 185RB differs from the other seven Longitude floorplans. Most distinctive first. Sibling pages may cover other model years than this one (2026). How these ranks are worked out.

• Dry weight, 5,293 lb: lightest of eight; next is the 255BH (6,068 lb).
• Tongue weight as a share of dry weight, 14%: largest of eight; next is the 230FK (13.6%).
• Length, 24 ft 1 in: shortest of eight; next is the 230FK (28 ft 6 in).
• GVWR, 7,740 lb: third-lowest of eight, between the 250RD (7,705 lb) and the 315FB (9,400 lb).
• Cargo capacity as a share of GVWR, 31.6%: third-largest of eight, between the 319BH (31.3%) and the 310RL (31.7%).
• Tongue weight, 740 lb: third-lightest of eight, between the 250RD (705 lb) and the 230FK (830 lb).
• Cargo capacity, 2,447 lb: fourth-largest of eight, between the 285BH (2,052 lb) and the 230FK (3,517 lb).

Next to the 255BH, the nearest heavier floorplan by dry weight, the 185RB is 775 lb lighter by dry weight, has a GVWR 90 lb higher, has 865 lb more cargo capacity, has a tongue weight 90 lb heavier and is 6 ft 5 in shorter; the two publish the same exterior height, fresh tank, grey tank and black tank.

Longitude is the only East to West line on this site that publishes a GVWR, and it is worth saying plainly what that buys you: on all seven plans where East to West publishes one, dry weight plus cargo capacity equals the published GVWR exactly. That arithmetic tying out is the difference between a loaded rating you can plan a tow around and a number somebody added up. GVWR runs 7,650 to 11,335 lb across the seven, against dry weights of 5,293 to 8,033 lb and cargo capacity of 1,367 to 3,572 lb. Tongue weight runs 650 to 935 lb, all bumper pull. Three more floorplans are published on the roster with no weights at all yet, and they are listed as announced rather than given specifications they do not have.

A full 53-gallon fresh tank is about 440 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 18% of the 185RB’s 2,447 lb cargo capacity, leaving 2,007 lb. Across 8 Longitude floorplans the water share runs 12% to 28%, and 4 give up more than this one. Nearest on that share: Longitude 230FK at 13% and Longitude 285BH at 21%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).