The 2025 Grand Design Momentum G-Class 21G is a compact, lightweight toy hauler travel trailer designed for riders, weekend adventurers, and couples who want garage capability without the size and weight of a full fifth wheel. At approximately 26’11” in length, this model delivers a smart combination of cargo space, comfort, and easy towing for half-ton trucks and properly equipped SUVs.

Built on a wide-body bumper-pull chassis, the 21G features a functional rear ramp garage that doubles as a multipurpose space for hauling ATVs, dirt bikes, kayaks, or outdoor gear. When unloaded, the garage transforms into additional living and sleeping space using the convertible Happi-Jac sofa/bed system, making it a flexible setup for travel and recreation.

Inside, the main living area is designed for efficient comfort, with a single slide-out that expands interior space, typically housing a sofa or convertible seating and dining arrangement. The layout is open and practical, giving you room to relax after a day outdoors without feeling cramped in a compact toy hauler footprint.

The kitchen is built for functionality on the road, featuring a 3-burner cooktop, microwave, mid-size 12V refrigerator, deep sink, and overhead storage cabinetry. It’s designed to handle weekend cooking or longer trips with ease, while keeping weight and complexity down.

At the front, the private bedroom area includes a walk-around queen bed with storage and wardrobe space, while the centrally located bathroom provides a walk-in shower, toilet, and vanity, making it fully self-contained for extended travel.

The 21G is also built with Grand Design’s focus on durability and convenience, offering features such as:

• Solar prep and off-grid readiness
• Tank capacities suitable for extended stays (approx. 90 gal fresh water)
• Power awning with LED lighting
• Fuel station (on equipped models) for toys and generators
• 15,000 BTU A/C system and enclosed underbelly protection

Key Features:

• Lightweight 26’11” bumper-pull toy hauler
• Rear ramp door garage with convertible living space
• Happi-Jac electric sofa/bed system (garage)
• Single slide-out open living area
• Walk-around queen front bedroom
• Full bathroom with walk-in shower
• 8 cu. ft. 12V refrigerator & modern kitchen setup
• Solar prep & extended-season capability
• Sleeps up to 6 depending on configuration

If you’re searching for a toy hauler for sale, Grand Design 21G, lightweight garage RV, or bumper-pull toy hauler camper, this model is one of the most popular entry points into the Momentum lineup thanks to its manageable size, versatility, and strong all-around functionality.