01 What makes it unique
The 17MAV is the entry to the whole Momentum family and the smallest garage Grand Design sells under the name: twenty-two feet eleven inches overall, 5,542 pounds dry, and $47,462 — a third of what the flagship 392M lists for. It is a MAV, which means a 24-inch DoveTail loading ramp, a garage pull-down screen, no wheel wells in the garage and a flat floor, under an R-40 TPO roof with a limited lifetime warranty and R-9 insulated walls. The factory publishes no slide count for this plan. It sleeps two.
The payload is the headline and it is remarkable: 9,950 pounds of GVWR against 5,542 dry leaves 4,408 pounds — roughly eighty percent of the trailer's own empty weight, and more cargo capacity than the entry Momentum fifth wheel gets at three times the price. The 873-pound dry tongue is the lightest in the family. And this is a MAV, so there is no fuel station: Grand Design prints N/A into the Fuel Capacity field on all five MAV floorplans and carries no fuel bullet anywhere in the MAV feature list, so no fuel figure appears on this page. If you want an onboard pump, you want a G-Class.
02 Full specifications
Dimensions
- Exterior length
- 22 ft 11 in
- Exterior width
- 8 ft 4 in
- Exterior height
- 12 ft 2 in
- Interior height
- 7 ft
- Garage / flex length
- 11 ft 6 in
Weights
- Dry / unit base weight (UVW)
- 5,542 lbs
- GVWR (max loaded)
- 9,950 lbs
- Net cargo / payload
- 4,408 lbs
- Dry tongue weight
- 873 lbs
Capacities
- Fresh water
- 90 gal
- Grey water
- 74 gal
- Black water
- 37 gal
- LP gas
- 40 lbs · 2 tanks
- Refrigerator
- 8 cu. ft.
Construction
- Sidewalls
- Insulated (R-9)
- Roof
- TPO membrane w/ limited lifetime warranty · R-40 · walk-on
- Main floor
- Insulated (R-11)
- Slide rooms
- Roof and end wall insulation (R-9)
- Underbelly
- Heated and enclosed w/ suspended tanks
Running gear
- Hitch
- Bumper pull
- Wheel wells
- None in garage — flat floor
- Spare
- Undermount
- Roof access
- Walk-on roof
Garage
- Garage / flex length
- 11 ft 6 in
- Garage insulation
- R-25
- Ramp
- 24″ DoveTail loading ramp · garage pull-down screen
- Tie-downs
- 2,500 lb tie-downs anchored into the chassis
Galley & systems
- Refrigerator
- 8 cu. ft. 12-volt
- Air conditioning
- 15,000 BTU
- Furnace
- 30,000 BTU
- Water heater
- Tankless
- Solar
- 200W solar prep (wiring, not a panel)* · 30 AMP controller · 2,000W inverter prep
- Shower
- 27″ x 36″
Sleeping & layout
- Sleeps
- 2
- Slides
- Not published by source
- Awnings
- 1 · 13 ft
- Hitch type
- Bumper pull
- Primary bed
- 60 X 80 Queen Bed
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 17MAV 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 |
|---|---|---|---|---|---|---|
| 344M | Momentum | 5W | 39′ 11″ | 11 ft | 6 | Entry Momentum — lowest GVWR of the ten, tightest payload |
| 392M | Momentum | 5W | 45′ 11″ | 17 ft | 9 | Sleeps nine, longest fifth-wheel garage in the family |
| 320G | Momentum G-Class | 5W | 36′ 3″ | 11 ft | 6 | Entry G-Class fifth wheel — lowest GVWR of the six |
| 394G | Momentum G-Class | 5W | 44′ 11″ | 15 ft* | 7 | Top G-Class GVWR, biggest G-Class payload, triple awning |
| 21G | Momentum G-Class | TT | 26′ 11″ | 14 ft* | 6 | Entry G-Class trailer — only single-slide, lowest GVWR |
| 30G | Momentum G-Class | TT | 34′ 10″ | 20 ft 7 in | 7 | Longest garage in the whole Momentum family |
| 17MAV | Momentum MAV | TT | 22′ 11″ | 11 ft 6 in | 2 | Lightest and cheapest Momentum built |
| 28MAV | Momentum MAV | TT | 33′ 11″ | 10 ft 4 in | 6 | Top of the MAV range — the only MAV with a slide-out |
The Momentum MAV is the compact end of the family — the lightest, cheapest way into a Momentum garage, on a single-axle-to-tandem bumper-pull with a 24-inch DoveTail loading ramp. It is the one Momentum roster that does NOT carry a fuel station: Grand Design prints N/A into the Fuel Capacity field on all five MAV plans and omits the fuel bullet from the MAV feature list, so no fuel figure is shown here. Additional MAV floorplans are catalogued on the line hub.
04 What owners & reviewers report
Payload is eighty percent of dry weight
4,408 pounds of cargo capacity against 5,542 pounds dry — more payload than the entry Momentum fifth wheel, which weighs nearly three times as much.
No fuel station — and that is published, not missing
Grand Design prints N/A into the Fuel Capacity field on every MAV plan and omits the fuel bullet from the MAV feature list entirely. Four separate factory surfaces agree. The other three Momentum rosters all carry one.
Slide count not published
The factory publishes no number of slides for this plan. We do not infer one.
Sleeps two
The lowest sleeping capacity in the family. This is a garage with a bed, not a family trailer.
05 How it compares
Eleven feet longer, sleeps six, adds a slide — but the payload drops to 2,700 pounds and the garage gets shorter.
Four feet longer and twenty-six thousand more, but it adds a 30-gallon fuel station, a slide and a fourteen-foot garage, and sleeps six.
The smallest Cyclone — 11,700 pounds of GVWR sleeping four, with a mandatory 30-gallon fuel tank the MAV does not offer.