2027 Grand Design Momentum G-Class TT 21G 

2027 Grand Design Momentum G-Class TT 21G

TOY HAULERS

Pack More Fun into Your Road Trip with a Toy Hauler RV

A toy hauler RV is a type of recreational vehicle that is designed to transport both people and their toys, such as motorcycles, ATVs, and jet skis. It typically features a garage area at the back of the RV with a large ramp door that can be used to easily load and unload the toys. The garage can be converted into a living space, such as a bedroom or dining area, when the toys are removed.

The main difference between a toy hauler RV and a non-toy hauler RV is the garage area. Non-toy hauler RVs typically do not have a garage, but instead have more living space, such as additional bedrooms or bathrooms. Toy hauler RVs are ideal for those who love outdoor activities and want to bring their toys along with them on their travels.

Owning a toy hauler RV has several pros and cons. Pros include the ability to bring along toys on trips, the versatility of the garage space, and the potential for resale value. Cons include the higher cost of a toy hauler RV compared to a non-toy hauler RV, the additional weight and length of the RV, which may make it more difficult to drive, and the need for regular maintenance and repairs to the garage area.

Ultimately, the decision to own a toy hauler RV depends on an individual's specific needs and preferences. Those who enjoy outdoor activities and want to bring their toys along on their travels may find a toy hauler RV to be the perfect fit for their lifestyle. 

Experience Unmatched Comfort and Functionality with the Momentum Toy Hauler

The Momentum toy hauler from Grand Design RV is a luxurious and spacious option for those who enjoy extreme adventures with their power sports. With residential-style interiors and a large bathroom, the Momentum offers all the comforts of home while on the road. The wide-body frame provides ample space for storage and living, making it perfect for families who want to travel in style and comfort. The slideboxes are fully insulated and laminated, making it weather-tested and durable for all types of terrains and weather conditions.

Grand Design RV takes pride in its attention to detail and quality craftsmanship, evident throughout the Momentum. The industry's best warranty and customer service back the product, providing customers with peace of mind and support they can rely on. As part of the growing, vibrant, and helpful community of Grand Design owners, customers can connect with others who share their passion for extreme adventures and power sports. With the Momentum toy hauler, Grand Design RV offers the ultimate luxury toy hauler with all the comforts of home for those who enjoy extreme adventures.

14-Foot Garage

The 14-foot garage offers exceptional versatility, giving you plenty of room to haul ATVs, motorcycles, or other gear with ease. When the toys are unloaded, the space quickly transforms into a flexible living, sleeping, or entertainment area to fit your needs. It’s designed to adapt, making every trip more functional and enjoyable.

Aluminum Framed w/Fiberglass Exterior

Superior aluminum construction with fiberglass exterior delivers durability and efficiency without compromising strength

Worry-Free Fiberglass Roof

A Grand Design exclusive, this low-maintenance roof is engineered for exceptional durability and impact resistance from hail, low-hanging branches, and the unexpected. Constructed from a single seamless deck with no OSB or wood layers, and reinforced with marine-grade fiberglass and precision wrap-around edging, it eliminates common weak points—helping prevent leaks, resist cracks, and minimize yearly upkeep while delivering lasting performance you can trust.

Fiberglass Slide-out Roof

Engineered for greater durability and long-term protection, fiberglass slide-out roofs provide a stronger, more resilient barrier against harsh weather, falling debris, and everyday wear. Unlike traditional materials that can crack, bubble, or deteriorate over time, the seamless fiberglass construction helps resist moisture intrusion while reducing maintenance—giving you added confidence wherever the road leads.

Brass Fittings

Ensure long-lasting performance with corrosion-resistant brass fittings that maintain strong, secure plumbing connections.

Electric Happi-Jac Bunk System w/Folding Sofas

Electric Happi-Jac system with folding sofas transforms your space at the touch of a button, from garage to living area

Continuous Armstrong Resilient Flooring

Durable flooring stretches the entirety of the interior resulting in a unified look with the enhanced resilience of a garage floor but the aesthetic of a modern home.

Rockford Fosgate Sound System

Experience concert-quality sound throughout your RV with premium Rockford Fosgate speakers, perfect for indoor and outdoor entertainment.

16" Goodyear Tires w/ABS Brakes

Adventure with confidence using 16" Goodyear tires and advanced ABS braking system, delivering superior control in any condition

Triple Insulated Garage

Three layers of insulation protect your toys and maintain comfort in any weather, making your garage usable year-round

30 Gallon Fuel Station

Keep the adventure going with our integrated 30-gallon fuel station, ensuring your toys stay powered up wherever you roam

GDRV Control Center

Monitor and control all your RV systems from one intuitive command center, delivering convenience and control on every adventure.

Weather-Proof Ramp Door

Our weather-proof ramp door system ensures reliable access and superior protection for your toys in any weather condition

200W Solar Panel + 30AMP Controller

Stay off-grid longer with our 200W solar panel and 30AMP controller, providing sustainable power for all your adventure needs

60K BTU Tankless Water Heater

Never run out of hot water with our 60K BTU tank-less system, providing endless hot water for everyone's comfort

Best-In-Class Warranty

Enjoy peace of mind with the industry-first 1-3-5 transferable warranty. Receive exceptional value and protection with 1 year base, 3 year structural, and 5 year frame—all transferable!

Features May Include:

KITCHEN

• Deep Seated Stainless-Steel Sink
• Residential Pull-Down Sprayer Faucet

APPLIANCE

• Stainless Steel Accented Appliances

AV

• Rockford Fosgate Bluetooth Stereo
• High Definition LED Television

HVAC

• 30K BTU High Capacity Furnace
• Heated and Enclosed Underbelly w/Suspended Tanks

ELECTRONICS

• OmniConnect On-Board WiFi Ready

RUNNING-GEAR

• 15” Aluminum Rims
• Anti-Lock Brake System

GARAGE

• Full-sized Rear Ramp Door
• Dovetail Rear End
• Rear-Ramp Loading Lights w/Back-up Light Function
• 2,500 lbs. Tie-downs Anchored into the Chassis

EXTERIOR

• 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

CONSTRUCTION

• 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
• Moisture Barrier Floor Enclosure
• Cabinet Mounted Heat Ducts

BATHROOM

• Residential Walk-In Shower
• Skylight Over Shower
• Power Vent Fan
• Medicine Cabinet with Mirror
• Headboard
• Double Entrance Bathroom

BEDROOM

• Large Backlit Mirror (21G, 25G, & 31G)
• Night Stands
• Bedside Outlets
• USB Chargers
• Solid Bedroom Door
• Residential Bedspread
• TV and Cable Prep

PLUMBING

• On Demand Water Heater
• Brass Plumbing Fittings w/ Shut Offs

ELECTRICAL

• 50 Amp Service

• Detachable Marine Grade Power Cord w/LED Light

INTERIOR

• Above Cabinet Accent Lighting
• Solid Hardwood Drawer Fronts
• Solid Core Cabinet Stiles
• Pre-Drilled and Screwed Cabinetry
• Ball Bearing Full Extension Drawer Glides
• Large Panoramic Windows
• Night Shades (All Windows)
• Upgraded Residential Furniture
• Residential Countertops
• Stainless Steel Accented Microwave
• Stainless Steel Accented 3-Burner Range
• Stainless Steel Accented Double Door Refrigerator
• Sink Cover
• Residential Cabinetry