01 What makes it unique
The Momentum G-Class 27G is a travel-trailer toy hauler 32 ft 3 in long with a 14 ft 1 in garage, on two axles with one slide-out and a 30-gallon fuel station. It is on Grand Design’s Momentum G-Class roster for 2027.
Grand Design’s page lists an unloaded vehicle weight of 8,650 lb, a GVWR of 13,000 lb and a tongue weight of 1,500 lb. It publishes no cargo carrying capacity, so none is printed or computed here. Tanks are 90 gal fresh, 78 gal grey and 39 gal black, and it sleeps 6.
Grand Design’s page names the 21G and 29GS as comparison floorplans.
How the 27G differs from the other eleven Momentum travel trailers. Most distinctive first. Each rank counts only the siblings that publish that field, and a figure most of them share is left out.
- Interior height, 8 ft 7 in: tallest of nine; next are the 21G, 25G and two others (7 ft 7 in).
- Tongue weight as a share of dry weight, 17.3%: second-largest of twelve, between the 27MAV (17.2%) and the 24MAV (18%).
- Dry weight, 8,650 lb: fourth-heaviest of twelve, between the 25G (8,600 lb) and the 30G (9,139 lb).
- Tongue weight, 1,500 lb: shared with the 29GS; of twelve, nine lighter and one heavier, nearest the 30G (1,425 lb) and the 31G (1,572 lb).
- Length, 32 ft 3 in: sixth-longest of twelve, between the 27MAV (32 ft 2 in) and the 28MAV (33 ft 11 in).
- Grey tank, 78 gal: largest of twelve, level with the 25G, 29GS and 30G; next are the 17MAV, 21G and five others (74 gal).
- Slide-out count, 1: fewest of eight, level with the 21G, 28MAV and 30MAV; next are the 25G, 29GS and two others (2).
- GVWR, 13,000 lb: highest of twelve, level with the 25G, 29GS and two others; next is the 30MAV (12,000 lb).
- Exterior height, 12 ft 4 in: tallest of twelve, level with the 21G, 25G and three others; next are the 17MAV, 22MAV and four others (12 ft 2 in).
- Black tank, 39 gal: shared with the 21G, 25G and two others; of twelve, six smaller and one larger, nearest the 17MAV, 22MAV and four others (37 gal) and the 31G (76 gal).
Next to the 25G, the nearest lighter floorplan by dry weight, the 27G is 50 lb heavier by dry weight, has a tongue weight 100 lb heavier, is 1 ft 4 in longer, has 1 ft more interior height and has one fewer slide-out; the two publish the same GVWR, exterior height, fresh tank, grey tank, black tank and sleeping capacity.
Next to the 30G, the nearest heavier floorplan by dry weight, the 27G is 489 lb lighter by dry weight, has a tongue weight 75 lb heavier, is 2 ft 7 in shorter, has 1 ft more interior height, sleeps one fewer and has one fewer slide-out; the two publish the same GVWR, exterior height, fresh tank, grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 32 ft 3 in
- Exterior width
- 8 ft 5 in
- Width, slides out
- 9 ft 8 in
- Exterior height
- 12 ft 4 in
- Interior height
- 8 ft 7 in
- Garage / flex length
- 14 ft 1 in
Weights
- Dry / unit base weight (UVW)
- 8,650 lbs
- GVWR (max loaded)
- 13,000 lbs
- Net cargo / payload
- Not published by Grand Design
- Hitch / tongue weight
- 1,500 lbs
Capacities
- Fresh water
- 90 gal
- Grey water
- 78 gal
- Black water
- 39 gal
- LP gas
- 40 lbs · 2 tanks
- Refrigerator
- 8 cu. ft.
Construction
- Sidewalls
- Laminated aluminum framed (R-7)
- Roof
- 5″ radius wood framed (R-40*) · double-insulated roof and front cap
- Ramp door
- Laminated aluminum framed (R-12)
- Front cap
- Fiberglass w/ paint · 48″ LED front cap lighting
- Underbelly
- Heated and enclosed w/ suspended tanks
Running gear
- Hitch
- Bumper pull
- Wheel wells
- None — flat garage floor
- Spare
- Full-sized spare tire and carrier
- Roof access
- Folding roof ladder · walk-on roof
- Tire size
- ST235/80R16 LRE
- GAWR, as Grand Design lists it
- 12,000 lbs
Garage
- Garage / flex length
- 14 ft 1 in
- Ramp
- Full-sized rear ramp door · rear-ramp loading lights w/ back-up function
- Tie-downs
- 2,500 lb tie-downs anchored into the chassis
- Fuel station
- 30 gal
Galley & systems
- Refrigerator
- 8 cu. ft. 12-volt
- Air conditioning
- 28,500 BTU
- Furnace
- 30,000 BTU
- Water heater
- Tankless
- Solar
- 220W roof-mounted panel · 30 AMP controller
- Shower
- 27 x 36″
Sleeping & layout
- Sleeps
- 6
- Slides
- 1
- Awnings
- 1
- Hitch type
- Bumper pull
- Primary bed
- 60 X 80 Queen Bed
How these published figures sit against the rest of the catalogue: travel trailer tongue weight by size; fresh, grey and black tank sizes; camper trailer size chart.
Drawn to scale
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
Towing it
Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.
Compares your figures with this page’s published GVWR (13,000 lb) and the upper loaded tongue estimate (1,950 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 10–15% of GVWR on the tongue, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433). The range starts at the published figure, because loaded is never lighter than that.
03 The Momentum floorplan family
Momentum is Grand Design's toy-hauler family, and it spans four rosters across both tow types. The full-size Momentum fifth wheel is the flagship — a 101-inch wide-body coach on MORryde independent suspension with disc brakes, carrying a 60-gallon dual fuel station. The Momentum G-Class fifth wheel sits below it on MORryde CRE3000 suspension and a Rotoflex pin box with a 30-gallon fuel station, and the G-Class travel trailer puts that same garage behind a bumper pull. The Momentum MAV is the compact end — the lightest and cheapest way into a Momentum garage, and the one roster with no fuel station at all. The 27G on this page is highlighted; each other profiled plan links to its own page. The full MY2027 catalogue runs to 28 floorplans across the four rosters; eight are profiled in depth here and the rest are catalogued on the line hub with their weights.
| Floorplan | Roster | Type | Length | Garage | Sleeps | Notable |
|---|---|---|---|---|---|---|
| 21G | Momentum G-Class | TT | 26′ 11″ | 14 ft* | 6 | Entry G-Class trailer — only single-slide, lowest GVWR |
| 25G | Momentum G-Class | TT | 30′ 11″ | 13 ft 6 in | 6 | 13 ft 6 in garage, sleeps 6, 2 slides |
| 27G | Momentum G-Class | TT | 32′ 3″ | 14 ft 1 in | 6 | 14 ft 1 in garage, sleeps 6, 1 slide |
| 30G | Momentum G-Class | TT | 34′ 10″ | 20 ft 7 in | 7 | Longest garage in the whole Momentum family |
| 31G | Momentum G-Class | TT | 35′ 11″ | 13 ft | 6 | 13 ft garage, sleeps 6, 2 slides |
| 29GS | Momentum G-Class | TT | 34′ 6″ | 11 ft* | 6 | 11 ft* garage, sleeps 6, 2 slides |
The Momentum G-Class travel trailer brings the G-Class garage to a bumper-pull, for buyers who want a real toy hauler without an in-bed hitch. Laminated aluminum walls, a full-sized rear ramp door, a flat no-wheel-well garage floor and a 30-gallon fuel station are standard across the roster. Tongue weights are factory dry figures — weigh the loaded trailer and confirm against your vehicle's door-jamb placard. Additional G-Class travel-trailer floorplans are catalogued on the line hub.
04 Notes on this floorplan
14 ft 1 in garage, 30-gallon fuel station
Garage / flex length and fuel station as printed on the 27G page.
Tongue 1,500 lb on 8,650 lb UVW
Grand Design’s tongue weight is 17.3% of its unloaded weight; the loaded figure is higher.
28,500 BTU A/C, 30,000 BTU furnace
Climate equipment as Grand Design lists it for the 27G.
90 fresh / 78 grey / 39 black
Tank capacities in gallons, from the 27G page.
05 How it compares
Named by Grand Design’s 27G page as a comparison floorplan: UVW 7,280 lb, GVWR 11,000 lb, 26 ft 11 in.
Named by Grand Design’s 27G page as a comparison floorplan: UVW 9,720 lb, GVWR 13,000 lb, 34 ft 6 in.
Every current Momentum floorplan, all four rosters, side by side.
07 Where this floorplan sits
Closest sibling: the Momentum 25G, nearest on the published figures. It differs on 3 of the 8 fields both publish (this plan first): length 32 ft 3 in vs 30 ft 11 in; dry weight 8,650 lb vs 8,600 lb; hitch weight 1,500 lb vs 1,400 lb. They match on sleeps, GVWR, fresh tank, grey tank and black tank.
| Momentum travel-trailer plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 13,000 | 8–12 of 12 | 9,950–13,000 |
| Dry weight (lb) | 8,650 | 9 of 12 | 5,542–9,720 |
| Hitch weight (lb) | 1,500 | 10–11 of 12 | 873–1,572 |
| Length | 32 ft 3 in | 7 of 12 | 22 ft 11 in–36 ft 11 in |
| Grey tank (gal) | 78 | 9–12 of 12 | 37–78 |
| Black tank (gal) | 39 | 7–11 of 12 | 37–76 |
| Sleeps | 6 | 4–11 of 12 | 2–7 |
Either side of it by GVWR: Momentum 25G matches it at 13,000 lb GVWR; Momentum 29GS matches it at 13,000 lb GVWR.
| Nearest Momentum travel-trailer siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Momentum 27G | 32 ft 3 in | 6 | 8,650 | 13,000 | — | 1,500 | 90 |
| Momentum 25G | 30 ft 11 in | 6 | 8,600 | 13,000 | — | 1,400 | 90 |
| Momentum 29GS | 34 ft 6 in | 6 | 9,720 | 13,000 | — | 1,500 | 90 |
| Momentum 30G | 34 ft 10 in | 7 | 9,139 | 13,000 | 3,861 | 1,425 | 90 |
| Momentum 30MAV | 36 ft 11 in | 6 | 8,400 | 12,000 | — | 1,400 | 90 |
| Momentum 28MAV | 33 ft 11 in | 6 | 8,300 | 11,000 | 2,700 | 1,200 | 90 |
All 24 Momentum floorplans: Momentum line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 27G | 13,000 | 8,650 | 6 | 32 ft 3 in |
| Jay Flight 40FKDS | 13,000 | 10,510 | 4 | 41 ft 0 in |
| Cherokee Timberwolf 39DL | 13,095 | 10,778 | — | 42 ft 8 in |
| Vengeance Rogue 25L141 | 12,900 | 8,189 | — | 32 ft 8 in |
| Cascade 39TNC | 13,140 | 8,885 | — | 40 ft 7 in |
| Zinger 390DB | 13,200 | 10,517 | 8 | 43 ft 1 in |
| Puma Vista 38VFL | 13,214 | 11,414 | — | 40 ft 3 in |
Against the 27G: the Jay Flight 40FKDS is 9 ft longer and sleeps 2 fewer; the Cherokee Timberwolf 39DL is 95 lb heavier and 10 ft longer; the Vengeance Rogue 25L141 is 100 lb lighter.
08 Common questions about the 27G
How much does the 27G weigh?
8,650 lb dry; 13,000 lb GVWR, the most it may weigh loaded.
What is the tongue weight of the 27G?
1,500 lb as published, 17% of the dry weight (median across 1,227 travel trailers here: 12%).
What size tow vehicle does the 27G need?
A tow rating of at least 13,000 lb, plus payload for the loaded tongue weight, passengers and cargo.
How many people does the 27G sleep?
It is rated to sleep 6. 1 of the 12 Momentum travel-trailer floorplans that publish a count sleep more.
What are the tank capacities on the 27G?
Fresh 90, grey 78, black 39 gallons. Off hookups, fresh water runs out first.
How long is the 27G?
32 ft 3 in overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
16 of the 18 fields this catalogue tracks are published for the 27G. Not published: cargo capacity (CCC), axle count.
Sourcing rules: methodology.
10 Manuals & documents
Sources: granddesignrv.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 19 recall campaigns and 201 owner complaints (model years 2005 on) against the Momentum line. They are counted separately: a recall is a confirmed defect with a remedy, a complaint one owner’s unverified account.
What to look at on a used one. Across the 201 complaints filed on this line the most-reported components are structure (41%), unknown or other (19%) and suspension (10%).
Recall coverage here is not complete, and complaints are owners’ unverified reports (how this record is built). Check a specific VIN at NHTSA before you buy. Full tables are on the Momentum line page.