New 2026 Grand Design Momentum G-Class 25G
Colton, CAMike Thompson's RV
Questions about this 2026 Grand Design Momentum G-Class 25G
What does it cost?
Mike Thompson's RV lists it at $69,998.
Is it new or used?
New. It is a 2026 model.
Is it still for sale?
Mike Thompson's RV’s website listed it for sale on October 31, 2026. RV Shift checks dealers’ websites about once a day, so ask the dealer to be sure.
Where is it?
At Mike Thompson's RV in Colton, CA. See all 38 RVs Mike Thompson's RV lists on RV Shift.
How many people does it sleep?
The dealer lists it as sleeping 4.
How long is it?
30' 11", with 2 slide-outs, as the dealer lists it.
How much does it weigh?
The dealer lists a dry weight (empty) of 8,600 lb, a GVWR (the most it is allowed to weigh loaded) of 13,000 lb and a hitch weight of 1,400 lb.
What does it take to tow it?
RV Finder’s estimate: it needs a vehicle rated to tow about 9,800 lb. That is its 8,600 lb dry weight plus 1,200 lb for water and gear, rounded up to the next 100 lb. The listing doesn’t say whether it’s a fifth wheel or a bumper-pull. RV Finder judged it as a bumper-pull from its weights: ask the dealer. RV Finder shows whether it is within your vehicle’s published rating, from the maker’s own towing guide, and checks tongue weight and payload too. Confirm your numbers in your owner’s manual and on the sticker in the driver’s door jamb. Check it in RV Finder
How do I ask the dealer about it?
Use the Check availability form on this page. Your message comes to RV Shift and we pass it to Mike Thompson's RV.
About this RV
Grand Design Momentum G-Class toy hauler 25G highlights: • 13' 6" Garage • Double-Entry Bath • Euro Chairs • Ramp Door/Patio • Outside Kitchen It's time to load up your family and off-road toys to enjoy the great outdoors at the speed you like with this Momentum G-Class toy hauler. Once at your destination, unload the toys from the 13' 6" of cargo space, put out the two slides, and start having fun. You can cook meals in the spacious kitchen area with extra counter space and relax in the Euro chairs or on the rollover sofas with a table. You can even cook at the outside kitchen underneath the 19' power awning. Are you looking for adventure and fun? The Momentum G-Class toy hauler by Grand Design will help you find it! You can explore during any season you choose with the Insulation Package that includes a heated and enclosed underbelly with suspended tanks, a high-capacity furnace, a moisture barrier floor enclosure, and cabinet-mounted heat ducts. Each model includes a high capacity water pump, a dovetail rear end, and 2,500-LB tie-downs anchored into the chassis.
Specifications as listed by the dealer
- Type
- Toy hauler
- Condition
- New
- Year
- 2026
- Make
- Grand Design
- Model
- Momentum G-Class 25G
- Stock number
- MN26063
- VIN
- 573TM3126TBB05651
- Sleeps
- 4
- Slides
- 2
- Length
- 30 ft 11 in
- Ext Width
- 8 ft 5 in
- Ext Height
- 12 ft 4 in
- Int Height
- 7 ft 7 in
- Interior Color
- SLATE- STANDARD WOOD
- Exterior Color
- STANDARD PAINT
- Hitch Weight
- 1,400 lbs
- GVWR
- 13,000 lbs
- Dry Weight
- 8,600 lbs
- Fresh Water Capacity
- 90 gals
- Grey Water Capacity
- 78 gals
- Black Water Capacity
- 39 gals
- Tire Size
- ST235/80R16 LRE
- Furnace BTU
- 30,000 btu
- Fuel Capacity
- 30 gals
- Available Beds
- Queen
- Refrigerator Type
- Stainless Steel
- Refrigerator Size
- 8 cu ft
- Cooktop Burners
- 3
- Shower Size
- 27" x 36"
- Number of Awnings
- 1
- Garage Size
- 13 ft 6 in
- LP Tank Capacity
- 20 lbs
- Water Heater Type
- Tankless
- AC BTU
- 28,500 btu
- TV Info
- LR 40" TV
- Awning Info
- 19' w/LED Accent Lighting
- Axle Count
- 2
- Number of LP Tanks
- 2
- Shower Type
- Walk-In Shower
- Electrical Service
- 30 amp
Features
- Main A/C with Race Track Ducting
- Backup Camera Prep
- Black Tank Flush
- Full Sized Spare Tire & Carrier
- 80% Tint Radius Safety Glass Windows
- 20# LP Bottles (2) w/Cover
- Radius Entry Door
- High-Capacity Water Pump
- Extra Large 1 1/2” Fresh Water Drain Valve
- Battery Disconnect Switch
- Folding Roof Ladder
- Gel Coated Fiberglass Exterior
- Easy Access Low Point Drain Valves
- Insulated Storage Doors
- Magnetic Storage and Entry Door Latches
- 18’-19’ Awning w/LED Accent Lighting
- Under Unit Accent Lighting
- Rockford Fosgate Speaker Package with Powered Sub
- Solar Prep (10 gauge wiring with universal MC4 connectors)
- Motion Sensor Exterior Storage Lighting
- Motion Sensor Entry Lighting
- Fiberglass Front Cap w/Paint
- 48” LED Front Cap Lighting
- Diamond Plate Front Rock Guard
- Triple Aluminum Tread Entry Steps
- 30 Gallon Fuel Station w/Interior and Exterior Gauge
- Power Tongue Jack
- Oversized Tank Capacities
- New Worry-Free Composite Roof w/ Lifetime Warranty
- Laminated Aluminum Framed Rear Ramp Door (R-12)
- Laminated Aluminum Framed Side Walls (R-7)
- Laminated Aluminum Framed Roof and End Walls in Slide Rooms (R-7)
- 1” Marine Grade OSB Floor (R-30*)
- 5" Radius Wood Framed Roof (R-40*)
- Universal Docking Station
- Walk on Roof
- No Wheel Wells
- Double Insulated Roof and Front Cap (R-40*)
- Heated and Enclosed Dump Valves
- High Density Roof Insulation w/Attic Vent
Listing and photos: Mike Thompson's RV. Details come from the dealership and can change; confirm them before you buy.