01 What makes it unique
The 37RVMILES is Sabre’s community co-brand, developed with the RV Miles network. It pairs a rear living room with a private front bedroom, a loft with a side patio, a desk for working on the road and a free-standing dinette option, under four slide-outs, sleeping seven. A Rugged & Loyal Limited Edition (the 37RVMILESRLD and 37RVMILESRLM) adds digital UV full-body paint, a hand-painted front cap, a triple air-conditioner setup (two 18,000-BTU plus one 8,000-BTU) and black aluminum rims. It rides the full Sabre build: the Lippert M-19 welded I-beam chassis, vacuum-bond laminated sidewalls, a high-gloss gelcoat front cap and an electric auto-level system.
Forest River publishes a 13,613-pound UVW and a 2,757-pound CCC, which derive a 16,370-pound GVWR (the manufacturer’s own definition is that CCC equals GVWR minus UVW), against a 2,370-pound dry pin. Twin 15,000-BTU ducted air conditioners (prepped for a third), a tankless water heater, a 12-volt refrigerator, real wood lumbercore cabinetry, solid-surface countertops, smart projectors in the primary bedroom and a tri-fold sleeper sofa are standard, under dual 12-foot and 16-foot awnings.
Published MSRP runs to roughly the mid-$120,000s with US street pricing far below placard (units have advertised in the mid-to-high $70,000s). It is the community-co-branded, work-friendly Sabre. For a buyer who wants a rear living room with a loft, a side patio and a desk — and optionally the full-body-paint Rugged & Loyal edition with triple A/C — in an affordable-luxury full-size fifth wheel towed behind a properly rated three-quarter-ton or larger truck, the 37RVMILES is the line’s co-brand plan.
02 Full specifications
Dimensions
- Exterior length
- 43' 0"
- Exterior width
- 8' 0"
- Exterior height
- 13' 5"
- Interior height
- 7' 0"
Weights
- Dry / unit base weight (UVW)
- 13,613 lbs
- GVWR (max loaded, derived)
- 16,370 lbs
- Net cargo / payload (CCC)
- 2,757 lbs
- Dry pin (hitch) weight
- 2,370 lbs
Capacities
- Fresh water
- 49 gal
- Grey water
- 68 gal
- Black water
- 38 gal
- Refrigerator
- 12V
Construction
- Frame
- Lippert M-19 welded I-beam · 50,000 psi steel · shot-blasted + powder-coated
- Walls
- Vacuum-bond laminated sidewalls & slide-outs · high-gloss gelcoat front cap
- Roof
- PVC roof membrane · thermal foil barrier in roof & front cap · attic fan
- Underbelly
- Heated forced-air underbelly · enclosed gate valves · universal docking station
Running gear
- Axles
- 2 (tandem) · Lippert M-19 chassis · per-axle GAWR not separately published *
- Hitch
- Fifth-wheel (in-bed) · 4-camera prep · inverter prep
- Brakes
- Electric · EZ-lube hubs · TPMS (tire pressure safety sensors)
- Tires
- Aluminum wheels · EZ-lube hubs · TPMS
Galley & bath
- Cooktop
- 3-burner gas range · 30" microwave · workstation farm sink
- Refrigerator
- 12V
- A/C
- 30,000 BTU (twin 15K, prepped for 3rd)
- Water heater
- Tankless · on-demand
Sleeping & layout
- Sleeps
- 7
- Slides
- 4
- Entries
- 1
- Awnings
- 2 (12' & 16')
- Primary bed
- Camper King
03 The Sabre floorplan family
Sabre is Forest River's affordable-luxury full-size fifth wheel — a half-step above the brand's own up-trim sibling Sandpiper toward the Cedar Creek luxury line, and a cross-shop against Grand Design's Reflection and Keystone's Cougar from just above. Six of the most distinct 2026 retail floorplans are profiled here in full. The 37RVMILES on this page is highlighted; each other plan links to its own page.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| 32GKS | 35 ft | 4 | Rear living, lightest and shortest, three slides |
| 33RLP | 40 ft | 4 | Sundeck retractable patio deck, rear living |
| 36FLX | 41 ft | 10 | Flex room + loft, outside kitchen, longest awning |
| 37RVMILES | 43 ft | 7 | RV Miles co-brand, rear living + desk, side patio |
| 36DBB | 43 ft | 8 | Two bedrooms + drop-frame loft, two full baths, five slides |
| 38RVHUNTER | 44 ft | 7 | RV Hunter co-brand, bath-and-a-half, heaviest and longest |
Sabre is Forest River's affordable-luxury full-size fifth wheel — a half-step above the brand's own up-trim sibling Sandpiper toward the Cedar Creek luxury line, and a cross-shop against Grand Design's Reflection and Keystone's Cougar from just above. Six of the most distinct 2026 retail floorplans are profiled here in full; the remaining catalogued retail plans (the 36EST rear kitchen and the 37FLH) and two Dealer Stock Only plans (the 36ML and the two-bath 38DBL) are listed on the hub but not profiled. Every plan is built on the Lippert M-19 welded I-beam tandem-axle chassis with a heated forced-air underbelly, vacuum-bond laminated sidewalls and a high-gloss gelcoat front cap, an electric auto-level system, a 50-amp marine power cord, a tankless water heater, twin 15,000-BTU ducted air conditioners (prepped for a third), real wood lumbercore cabinetry, solid-surface countertops and smart projectors in the primary bedrooms as standard. Hitch weight, UVW and CCC are published per plan on the Forest River factory pages; GVWR is derived as UVW plus CCC per the manufacturer's own definition. The numeric per-axle GAWR is not separately published for Sabre. UVW is a factory estimated average; real loaded pin weights run higher — always weigh the loaded coach and confirm against your truck's payload and rear-axle ratings.
04 What owners & reviewers report
RV Miles community co-brand
Developed with the RV Miles network — a rear-living coach with a loft, a side patio and a desk, aimed at full-time and long-haul travelers.
Loft with side patio + desk
A loft with a side patio and a dedicated desk — extra sleeping or storage above and a workspace for the road.
Rugged & Loyal full-body-paint edition
An optional limited edition adds digital UV full-body paint, a hand-painted front cap, triple A/C (2x18K + 1x8K) and black rims — a distinct premium trim of the same plan.
Wants a three-quarter-ton+ truck
At 43 feet on a derived 16,370-lb GVWR, confirm a properly rated three-quarter-ton or larger truck’s payload and rear axle.
05 How it compares
The other work-friendly plan — a convertible Flex Room and outside kitchen instead of a rear living room with a desk and side patio.
Grand Design’s big rear-living Reflection — the mainstream-luxury-FW cross-shop a tier across.
Forest River’s luxury rear-living fifth wheel — a tier above, heavier and far pricier.