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Webster City New

2023 Grand Design Momentum 21G

Travel Trailer
  • Type: Travel Trailer
  • Layout: Front Bedroom
Good Life Price: $0


2023 Grand Design Momentum 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.

In the Momentum 21G you can have the time of your life without missing out on comfort and luxury. Take advantage of amazing hauling capabilities, plus comfortable living quarters for cooking, relaxing, and more. When your toys are in the 14′ garage, everything tucks away – but when it’s out and about, you have multiple sleeping and lounge options.

For Sale at Good Life RV in Webster City, IA. We consider all trades and offer competitve financing options!  Give us a call today to start your adventure!  515-207-9457


  • STOCK #: P219600
  • Location: Webster City
  • Year: 2023
  • Condition: New
  • GVWR lbs: 11,000
  • Unloaded lbs: 7,223
  • Hitch Weight: 1,059
  • Fresh Gals: 96
  • Grey Gals: 74
  • Black Gals: 39
  • Slideouts: 1
  • Sleeps: 6
  • Layout: Front Bedroom
  • Interior Color: Silver Maple
  • LENGTH: 21 ft

Options Included

  • A/C w/Race Track Ducting
  • G-Class Exterior Package
  • G-Class Garage/Cargo Package
  • G-Class Insulation Package
  • G-Class Luxury Interior Package
  • G-Class Under Unit LED Light Kit
  • Gen II 3 Season Door with Sliding Windows
  • Generator - Onan 4KW Gasoline Generator
  • Goodyear Tires
  • Happi-Jac Electric Bunk System w/Folding Sofas
  • Rear Aluminum Deck System w/Rear Power Awning
  • Rockford Fosgate Stage 1 Stereo - 500 Watts, Int/Ext Speakers w/10" Powered Sub
  • RVIA Seal
  • Solar Prep
  • Solar+ Package (Dual 200W Panels, 2000W Inverter, 50 Amp Controller, 2 Dock Ports & Bluetooth Module)

Momentum G-Class 21G 3D Video

Tours may have options and features that differ from actual In-Stock Unit. Verify your features and options.

Floor Plan




  • 12V 8cu ft Refridgerator
  • 15k BTU Ducted A/C
  • 19' Power Awning
  • 2 20# LP Bottles
  • 3 Burner Range w/ Oven
  • 30 Amp Service
  • 30 Gallon Fuel Capacity
  • 30K BTU Furnace
  • 6 Gallon Quick Recovery Auto Ignition Gas/Electric Water Heater
  • Backup Camera prep
  • Foot Flush Toilet
  • Glass Range Cover (Flush w/Counter Top)
  • High Arch Kitchen Faucet w/Pull Down Sprayer
  • Microwave
  • Power Vent Fan in Bathroom
  • Rockford Fosgate Speaker Package w/12" Sub and 300W Amp
  • TV and Cable Prep


  • 2 Euro Chairs
  • Built in Front Dresser with Countertop and drawers below
  • Happijack Power Bed System
  • Medicine Cabinet w/ Mirror
  • Night Shades
  • Night Stands
  • Overhead cabinets above bed
  • Queen Bed
  • Shirt wardrobe in bedroom
  • Walk In Shower with Skylight


  • Front Bedroom
  • Rear Garage


  • Battery Disconnect Switch
  • Carbon Monoxide Detector
  • Fire Extinguisher
  • Folding Entry Handle
  • Full Size Spare Tire
  • Smoke Detector
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  • 1"Marine Grade OSB Floor (R-30)
  • 14' Garage
  • 26'11" Overall Length
  • 30 Gallon Fuel Station
  • 5" Radius Wood Framed Roof (R-40*)
  • 80% Tint Radius Safety Glass Windows
  • Black Tank Flush
  • Double Insulated Roof & Front Cap
  • Easy Access Low Point Drain Valves
  • Extra Large 1-1/2" Fresh Water Drain Valvle
  • Fiberglass Front Cap W/Paint
  • Folding Roof Ladder
  • Gel Coated Fiberglass Exterior
  • Heated & Enclosed Underbelly w/Suspended Tanks
  • High-Capacity Water Pump
  • Insulated Storage Doors
  • Interior LED Accent Lighting
  • Laminated Aluminum Framed Insulation Factors: Rear Ramp Door (R-12), Side Walls (R-7), Roof & End Walls in Slides (R-7)
  • Large Panoramic Windows
  • Magnetic Storage and Entry Door Latches
  • Moisture Barrier Floor Enclosure
  • Motion Sensor Entry Lighting
  • Motion Sensor Exterior Storage Lighting
  • Painted Front Cap w/48" LED Accent Lighting
  • Radius Entry Door
  • Solar Prep (10 Gauge wiring w/universal MC4 Connectors)
  • TPO Roof Covering w/18-Year Warranty
  • Under Unit Accent Lighting
  • Universal Docking Station
  • USB Charging Stations (Beds, Bunks, Living Area)
  • Walk On Roof Decking


  • 2,500 lbs. Tie-downs Anchored into the Chassis
  • Aluminum Wheels
  • Dovetail Rear End
  • Power Tongue Jack
  • Rear-Ramp Loading Lights w/Back-up Light Function
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Disclaimer: We make every effort for complete and accurate descriptions of our RVs, but manufacturers and certain campers have changes or options that may not be noted and may differ. GLRV is not to be held responsible for misprints. Please verify the equipment on your RV before purchasing.
2023 Grand Design Momentum 21G
Good Life Price: $0
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