New and used 21G Momentum G-Class by Grand Design RVs for sale

New 2026 Grand Design Momentum G-Class 21G

$63,995.00
MESA, AZ
Mesa, AZ

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"This is the manufacturer's minimum allowed advertised price, contact us today for your unbeatable personalized quote." NEW 2026 Grand Design Momentum G-Class 21G – Built for Riders, Dreamers, and Adventure Seekers The 2026 Grand Design Momentum G-Class 21G isn’t just a toy hauler—it’s your gateway to adventure. From mountain trails to desert dunes, lake weekends to wide-open highways, this travel trailer is designed for those who live for the ride and crave the freedom of the outdoors. Compact, versatile, and built with Grand Design’s signature quality, the 21G makes it easy to bring your toys along without leaving home-style comfort behind. Key Features for Adventure Living Queen Bed Slide & Master Suite – Enjoy a private retreat with a walk-around queen bed, ample storage, and direct access to the bathroom. Spacious 14' Garage – Secure your toys with 2,500-lb. tie-downs bolted into the chassis. Once unloaded, the garage transforms into a living and sleeping zone. Ramp Door/Patio System – Expand your space with a ramp that doubles as an outdoor deck—perfect for lounging, grilling, or soaking in the view. Happi-Jac Rollover Sofas & Euro Chairs – Flexible seating that easily converts into beds for guests or extra comfort after a day on the trails. Fuel Station – Keep the fun going with your own built-in fueling station for dirt bikes, ATVs, or side-by-sides. 19' Power Awning with LED Lights – Create an inviting outdoor hangout with shade by day and soft lighting at night. Built for Off-Road Lifestyles Heated and enclosed underbelly with suspended tanks for true four-season travel High-capacity furnace with cabinet-mounted heat ducts for warmth in any terrain Moisture barrier floor enclosure for long-term durability Dovetail rear design for smoother loading and unloading of gear Comforts That Make You Feel at Home Large panoramic windows framing campfire nights and sunrise views Dual-entry bathroom with skylight above the shower Residential-style cabinetry and modern LED lighting throughout Bedroom USB ports for easy device charging Optional power bunk to expand sleeping capacity for friends and family Wherever your adventures take you—whether it’s a hidden forest trail, a desert rally, or a weekend at the lake—the Momentum G-Class 21G is designed to haul your lifestyle and keep you comfortable when the day winds down. Why Buy From Campers Inn RV: Knowledgeable RV professionals who help match you with the right RV for your travel lifestyle Thorough pre-delivery inspection process so your RV is ready for the road Flexible financing solutions tailored to your needs Nationwide support network for service and assistance wherever you travel A long-standing commitment to customer satisfaction before and after the sale Campers Inn RV is dedicated to helping you start your next adventure with confidence, comfort, and the support of one of the most trusted names in the RV industry. INVENTORY MAY BE SHOWN. COLOR AND SPECS MAY VARY. CALL FOR DETAILS.

New 2026 Grand Design Momentum G-Class 21G

$63,995.00
LITTLE DEALER OF MESA, AZ
Mesa, AZ

View Details

"This is the manufacturer's minimum allowed advertised price, contact us today for your unbeatable personalized quote." NEW 2026 Grand Design Momentum G-Class 21G – Built for Riders, Dreamers, and Adventure Seekers The 2026 Grand Design Momentum G-Class 21G isn’t just a toy hauler—it’s your gateway to adventure. From mountain trails to desert dunes, lake weekends to wide-open highways, this travel trailer is designed for those who live for the ride and crave the freedom of the outdoors. Compact, versatile, and built with Grand Design’s signature quality, the 21G makes it easy to bring your toys along without leaving home-style comfort behind. Key Features for Adventure Living Queen Bed Slide & Master Suite – Enjoy a private retreat with a walk-around queen bed, ample storage, and direct access to the bathroom. Spacious 14' Garage – Secure your toys with 2,500-lb. tie-downs bolted into the chassis. Once unloaded, the garage transforms into a living and sleeping zone. Ramp Door/Patio System – Expand your space with a ramp that doubles as an outdoor deck—perfect for lounging, grilling, or soaking in the view. Happi-Jac Rollover Sofas & Euro Chairs – Flexible seating that easily converts into beds for guests or extra comfort after a day on the trails. Fuel Station – Keep the fun going with your own built-in fueling station for dirt bikes, ATVs, or side-by-sides. 19' Power Awning with LED Lights – Create an inviting outdoor hangout with shade by day and soft lighting at night. Built for Off-Road Lifestyles Heated and enclosed underbelly with suspended tanks for true four-season travel High-capacity furnace with cabinet-mounted heat ducts for warmth in any terrain Moisture barrier floor enclosure for long-term durability Dovetail rear design for smoother loading and unloading of gear Comforts That Make You Feel at Home Large panoramic windows framing campfire nights and sunrise views Dual-entry bathroom with skylight above the shower Residential-style cabinetry and modern LED lighting throughout Bedroom USB ports for easy device charging Optional power bunk to expand sleeping capacity for friends and family Wherever your adventures take you—whether it’s a hidden forest trail, a desert rally, or a weekend at the lake—the Momentum G-Class 21G is designed to haul your lifestyle and keep you comfortable when the day winds down. Why Buy From Campers Inn RV: Knowledgeable RV professionals who help match you with the right RV for your travel lifestyle Thorough pre-delivery inspection process so your RV is ready for the road Flexible financing solutions tailored to your needs Nationwide support network for service and assistance wherever you travel A long-standing commitment to customer satisfaction before and after the sale Campers Inn RV is dedicated to helping you start your next adventure with confidence, comfort, and the support of one of the most trusted names in the RV industry. INVENTORY MAY BE SHOWN. COLOR AND SPECS MAY VARY. CALL FOR DETAILS.

New 2026 Grand Design Momentum G-Class 21G

Call for price
MESA, AZ
Mesa, AZ

View Details

Grand Design Momentum G-Class toy hauler 21G highlights: Queen Bed Slide Master Suite Euro Chairs Ramp Door/Patio Fuel Station 14' Garage You don't have to rough it with all the amenities found in this Momentum G-Class toy hauler including your own master suite with a walk-around queen bed slide and private access into the dual-entry bathroom. The kids or your friends can sleep on the Happi-Jac rollover sofas with an optional top bed, and the Euro chairs can become the waiting area for the next rider. Keep the party going all weekend long with your very own fuel station and the 19' power awning. Come see why this model will fit perfectly into your off-road lifestyle! 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 fuel station with an interior and exterior gauge, a dovetail rear rend, and 2,500-LB tie-downs anchored into the chassis. Throughout the Momentum G-Class interior, you'll enjoy many comfortable features like large panoramic windows, a shower skylight, USB chargers in the bedroom, and residential cabinetry. *All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn Company locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes freight, sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly. Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.

New 2026 Grand Design Momentum G-Class 21G

Call for price
LITTLE DEALER OF MESA, AZ
Mesa, AZ

View Details

Grand Design Momentum G-Class toy hauler 21G highlights: Queen Bed Slide Master Suite Euro Chairs Ramp Door/Patio Fuel Station 14' Garage You don't have to rough it with all the amenities found in this Momentum G-Class toy hauler including your own master suite with a walk-around queen bed slide and private access into the dual-entry bathroom. The kids or your friends can sleep on the Happi-Jac rollover sofas with an optional top bed, and the Euro chairs can become the waiting area for the next rider. Keep the party going all weekend long with your very own fuel station and the 19' power awning. Come see why this model will fit perfectly into your off-road lifestyle! 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 fuel station with an interior and exterior gauge, a dovetail rear rend, and 2,500-LB tie-downs anchored into the chassis. Throughout the Momentum G-Class interior, you'll enjoy many comfortable features like large panoramic windows, a shower skylight, USB chargers in the bedroom, and residential cabinetry. *All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn Company locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes freight, sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly. Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.

New 2026 Grand Design Momentum G-Class 21G

Call for price
GENERAL RV CENTER RICHMOND, VA
Ashland, VA

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Grand Design Momentum G-Class toy hauler 21G highlights: Queen Bed Slide Master Suite Euro Chairs Ramp Door/Patio Fuel Station 14' Garage You don't have to rough it with all the amenities found in this Momentum G-Class toy hauler including your own master suite with a walk-around queen bed slide and private access into the dual-entry bathroom. The kids or your friends can sleep on the Happi-Jac rollover sofas with an optional top bed, and the Euro chairs can become the waiting area for the next rider. Keep the party going all weekend long with your very own fuel station and the 19' power awning. Come see why this model will fit perfectly into your off-road lifestyle! 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 fuel station with an interior and exterior gauge, a dovetail rear rend, and 2,500-LB tie-downs anchored into the chassis. Throughout the Momentum G-Class interior, you'll enjoy many comfortable features like large panoramic windows, a shower skylight, USB chargers in the bedroom, and residential cabinetry.

Used 2024 Grand Design Momentum G-Class 21G

$49,995.00
GENERAL RV CENTER CLARKSTON, MI
Village of Clarkston, MI

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Grand Design Momentum G-Class toy hauler 21G highlights: Queen Bed Slide Master Suite Euro Chairs Ramp Door/Patio Fuel Station 14' Garage You don't have to rough it with all the amenities found in this Momentum G-Class toy hauler including your own master suite with a walk-around queen bed slide and private access into the dual-entry bathroom. The kids or your friends can sleep on the Happi-Jac rollover sofas with a top bed, and the Euro chairs can become the waiting area for the next rider. Keep the party going all weekend long with your very own fuel station and the exterior speakers. Come see why this model will fit perfectly into your off-road lifestyle! 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 fuel station with an interior and exterior gauge, a dovetail rear rend, and 2,500-LB tie-downs anchored into the chassis. Throughout the Momentum G-Class interior, you'll enjoy many comfortable features like large panoramic windows, a shower skylight, USB chargers in the bedroom, and residential cabinetry.

New 2026 Grand Design Momentum G-Class 21G

$84,518.00
BRETZ RV & MARINE BILLINGS, MT
Billings, MT

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Grand Design Momentum G-Class toy hauler 21G highlights: Queen Bed Slide Master Suite Euro Chairs Ramp Door/Patio 14' Garage You don't have to rough it with all the amenities found in this Momentum G-Class toy hauler including your own master suite with a walk-around queen bed slide and private access into the dual-entry bathroom. The kids or your friends can sleep on the Happi-Jac rollover sofas with an optional top bed, and the Euro chairs can become the waiting area for the next rider. Keep the party going all weekend long with your very own fuel station and the 19' power awning. Come see why this model will fit perfectly into your off-road lifestyle! 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. Throughout the Momentum G-Class interior, you'll enjoy many comfortable features like large panoramic windows, a shower skylight, USB chargers in the bedroom, and residential cabinetry.

New 2026 Grand Design Momentum G-Class 21G

Call for price
BRETZ RV & MARINE NAMPA, ID
Nampa, ID

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Grand Design Momentum G-Class toy hauler 21G highlights: Queen Bed Slide Master Suite Euro Chairs Ramp Door/Patio Fuel Station 14' Garage You don't have to rough it with all the amenities found in this Momentum G-Class toy hauler including your own master suite with a walk-around queen bed slide and private access into the dual-entry bathroom. The kids or your friends can sleep on the Happi-Jac rollover sofas with an optional top bed, and the Euro chairs can become the waiting area for the next rider. Keep the party going all weekend long with your very own fuel station and the 19' power awning. Come see why this model will fit perfectly into your off-road lifestyle! 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 fuel station with an interior and exterior gauge, a dovetail rear rend, and 2,500-LB tie-downs anchored into the chassis. Throughout the Momentum G-Class interior, you'll enjoy many comfortable features like large panoramic windows, a shower skylight, USB chargers in the bedroom, and residential cabinetry.

New 2025 Grand Design Momentum G-Class 21G

$44,986.00
CAMPERS INN RV MERRIMACK, NH
Merrimack, NH

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Experience adventure with style, comfort, and confidence in the New 2025 Grand Design Momentum G-Class 21G, now available at Campers Inn RV. This compact yet powerful toy hauler travel trailer is the perfect blend of performance, versatility, and modern design — ideal for weekend warriors, outdoor enthusiasts, and anyone who wants to bring gear and comfort along for the ride. Why Buy the 2025 Grand Design Momentum G-Class 21G? Choosing the Momentum G-Class 21G means getting a toy hauler that lives big despite its size. It’s perfect for: Outdoor enthusiasts who want to bring gear without sacrificing comfort Travelers who prefer a compact, manageable trailer that doesn’t skimp on features Adventurers seeking flexible space for toys, living, and sleeping RVers who value modern design, quality craftsmanship, and smart functionality Why Buy From Campers Inn RV? When you purchase from Campers Inn RV, you’re choosing a dealership with a reputation for exceptional service, deep product knowledge, and customer-first support. Here’s why buying from Campers Inn RV elevates your ownership experience: Expert Guidance: The RV professionals at Campers Inn RV know the Momentum G-Class lineup inside and out. They’ll help you explore features, understand options, and match you with the right travel trailer for your lifestyle and travel goals. Flexible Financing: Campers Inn RV offers customized financing options designed to fit a wide range of budgets and needs, making ownership accessible and stress-free. Quality Assurance: Every new RV at Campers Inn RV goes through thorough evaluation, so you can feel confident in your purchase and enjoy peace of mind behind the wheel. Ongoing Support: Ownership doesn’t end at purchase. With access to service centers, parts departments, and continued customer care, Campers Inn RV supports you long after you drive off the lot. Trusted Reputation: With years of experience and countless satisfied customers, Campers Inn RV stands out for honest guidance, responsive service, and a commitment to helping RVers enjoy every mile of their journey.

Used 2023 Grand Design Momentum G-Class 21G

$39,999.00
CAMPERS INN RV CONWAY, SC
Conway, SC

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Grand Design Momentum G-Class 21G Toy Hauler Highlights: Queen Bed Slide in Master Suite Dual-Entry Master Bathroom Euro Chairs for additional seating Ramp Door/Patio with 14' Garage 30-Gallon Fuel Station Adventure-Ready Master Suite & Sleeping Areas The Momentum G-Class 21G offers a master suite with a walk-around queen bed slide and private dual-entry bathroom for comfort and convenience. Guests or kids can rest on the Happi-Jac power bunk above the rollover sofas with a table, while the Euro chairs provide a versatile waiting or relaxation area. Garage & Outdoor Features Enjoy a 14' garage space with tie-downs to secure your off-road vehicles. The ramp door converts into a patio for outdoor entertaining, complemented by exterior speakers and the 30-gallon fuel station with interior and exterior gauges to keep your adventures fueled. Comfort & Convenience Inside Inside, the Momentum G-Class includes large panoramic windows, a shower skylight, USB charging ports in the bedroom, and residential-style cabinetry. These features create a modern and functional interior perfect for extended trips or weekend adventures. Built for Year-Round Fun Heated and enclosed underbelly with suspended tanks High-capacity furnace and moisture barrier floor enclosure Cabinet-mounted heat ducts for even warmth throughout Dovetail rear ramp for added structural strength 2,500-LB tie-downs for secure cargo transport The Grand Design Momentum G-Class 21G toy hauler blends luxury, comfort, and adventure-ready features. With a spacious master suite, versatile garage, and fuel station, this unit is perfect for off-road enthusiasts looking to travel in style. Explore any season with confidence and enjoy both indoor and outdoor living in this feature-packed toy hauler. Contact us today to confirm options and availability!

New and used 21G Momentum G-Class by Grand Design RVs for sale

New 2026 Grand Design Momentum G-Class 21G

$63,995.00

New 2026 Grand Design Momentum G-Class 21G

$63,995.00

New 2026 Grand Design Momentum G-Class 21G

Call for price

New 2026 Grand Design Momentum G-Class 21G

Call for price

New 2026 Grand Design Momentum G-Class 21G

Call for price

Used 2024 Grand Design Momentum G-Class 21G

$49,995.00

New 2026 Grand Design Momentum G-Class 21G

$84,518.00

New 2026 Grand Design Momentum G-Class 21G

Call for price

New 2025 Grand Design Momentum G-Class 21G

$44,986.00

Used 2023 Grand Design Momentum G-Class 21G

$39,999.00

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