2026 Grand Design Momentum G-Class TT 21G
- Year 2026
- Make Grand Design
- Model Momentum G-Class TT
2026 Grand Design Momentum G-Class TT 21G
The all new Momentum G-Class is lighter without sacrificing any comfort or spaciousness — thanks to our tall ceilings and slide outs. With all of the quality, innovation, and functionality that our family of Momentum owners love, it's everything you need and nothing you don’t.
Features may include:
- Thermal Roof Design (R-40)*
- Full Laminated Walls (R-7)*
- Triple Insulated Main Floor (R-40)*
- Triple Insulated Garage Floor (R-40)*
- Vented Attic
Dimensions
							Overall Height
							12' 2"
						
						
							Overall Length
							26' 11"
						
						
							Overall Width
							8' 5" | (w/ slide out): 11' 4"
						
						
							Interior Height
							7' 7"
						
						
							Dimensions
							Standard Bed: 60 X 80 Queen Bed | Shower: 27 X 36
						
						
							Garage Length
							14
						
						
							Awning Size
							19
						
						Weights
							Hitch Weight Capacity
							920 lbs.
						
						
							Unloaded Weight
							6,400 lbs.
						
						
							GVWR
							11,000 lbs.
						
						Capacities
							Fresh Water Capacity
							90 gal.
						
						
							Gray Water Capacity
							74 gal.
						
						
							Black Water Capacity
							39 gal.
						
						
							LP Tank Capacity
							40 gal
						
						
							Sleeping Capacity
							6
						
						
							Fuel Capacity
							30 lbs
						
						
							Water Heater
							Tankless 
						
						
							Refrigerator
							8 cu. ft.
						
						Features
							Features
							Propane Tanks: 2 | Construction Type: Laminated | Slide Room R-Value: R-7 | Garage R-Value: R-30 | Slides: 1 | Awnings: 1
						
						
							R-Value, Floor
							R-40
						
						
							R-Value, Wall
							R-7
						
						
							R-Value, Roof
							R-40
						
						Operational
							Furnace Output
							30,000 BTU
						
						
							Air Conditioner Output
							15,000 BTU
						
						Chassis
							Axle Count
							2
						
						Wheels & Tires
							Wheels
							16 in.
						
						
							Tires, Rear Specification
							ST235/80R16LRE
						
					 
				