Skip to main content
Grand Design - Momentum G-Class Logo

Grand Design - Momentum G-Class

Grand Design Momentum G-Class
Type/Class
Toy Hauler
Sleeps
4 - 8
Weight
11,000 - 16,800 lbs.
Length
27 - 42 ft. Long
Floorpans
13 options

The Grand Design Momentum G-Class is a luxurious toy hauler fifth wheel designed for adventurers who want to bring their toys along in style and comfort. This spacious RV offers ample living space and storage for all your gear. Prices for the Momentum G-Class start around $149,000. Other standout features include a versatile garage area, a well-equipped kitchen, and a convenient half bath.

The bottom line: The Momentum G-Class delivers a premium toy hauler experience with its thoughtful layout, upscale amenities, and generous capacity - perfect for families or groups seeking adventure without sacrificing comfort.

Try Before You Buy

With its high-end features and spacious design, the Grand Design Momentum G-Class represents a significant investment, with base models starting at around $149,000. Before making such a large purchase, consider renting one through RVshare for about $140 per night. This allows you to thoroughly experience the Momentum G-Class's unique layout, ample storage, and towing requirements firsthand.

Renting provides the opportunity to see how well the RV's expansive living area, fully equipped kitchen, and convertible garage suit your camping style and needs. You can also get a feel for the type and size of tow vehicle required to safely pull this hefty fifth wheel. For those new to towing, RV delivery offers a convenient alternative, enabling you to enjoy the Momentum G-Class experience without worrying about driving or parking the sizable trailer yourself.

Pros and Cons of a Grand Design Momentum G-Class

Pros
  • Versatile garage area converts to a living space for extra sleeping capacity

  • Generous interior with multiple slide-outs for expanded living and storage

  • Sleeps up to 8, making it suited for larger groups or families

Cons
  • Higher price point compared to other toy hauler fifth wheels

  • Heavier weight requires a more powerful tow vehicle

  • Larger size can make navigating and parking in tight campgrounds challenging

Model Specifications: Grand Design Momentum G-Class

Momentum G-Class 21G
Momentum G-Class 23G
Momentum G-Class 25G
Momentum G-Class 28G
Momentum G-Class 29G
Momentum G-Class 30G
Momentum G-Class 315G
Momentum G-Class 31G
Momentum G-Class 320G
Momentum G-Class 320G-R
Momentum G-Class 32G
Momentum G-Class 350G
Momentum G-Class 355G
Gross Weight
11,000 lbs.
13,000 lbs.
13,000 lbs.
13,000 lbs.
13,000 lbs.
13,000 lbs.
16,400 lbs.
13,000 lbs.
16,800 lbs.
16,800 lbs.
13,000 lbs.
16,800 lbs.
n/a
Dry Weight
7,223 lbs.
7,669 lbs.
8,574 lbs.
9,153 lbs.
9,278 lbs.
9,139 lbs.
12,198 lbs.
9,698 lbs.
12,400 lbs.
12,400 lbs.
9,569 lbs.
12,950 lbs.
12,950 lbs.
Cargo Weight
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Height
12 ft.
12 ft.
12 ft.
12 ft.
12 ft.
12 ft.
13 ft.
12 ft.
13 ft.
13 ft.
12 ft.
13 ft.
13 ft.
Sleeps
6
6
6
7
6
7
7
6
4
4
6
7
8
Bunks
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Slide Outs
1
1
2
2
2
2
2
2
3
3
1
3
2
Fuel Type
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Towing Capacity
1,059 lbs.
1,242 lbs.
1,374 lbs.
1,368 lbs.
1,592 lbs.
1,425 lbs.
2,347 lbs.
1,602 lbs.
2,300 lbs.
2,300 lbs.
1,485 lbs.
2,600 lbs.
3,017 lbs.
Electrical Service
30-amp
30-amp
30-amp
30-amp
30-amp
30-amp
50-amp
30-amp
50-amp
50-amp
30-amp
50-amp
50-amp

Questions to Ask when Choosing Your RV Rental