2027 Grand Design Momentum G-Class320G

The 320G opens the G-Class fifth-wheel roster: thirty-six feet, three slides, an eleven-foot garage and a 2,300-pound dry pin — the lightest pin of any Momentum fifth wheel. It keeps the 101-inch wide-body Super Chassis and adds the G-Class running gear: MORryde CRE3000 suspension on upgraded axle hangers, a Rotoflex pin box, electric auto-leveling, 17.5-inch H-rated aluminum wheels and Grand Design's new Omega Frame. The walls are laminated aluminum at R-11 under a 5-inch radius wood-framed R-40 roof, and the garage sits behind a laminated aluminum ramp door rated R-7. The factory scopes this plan explicitly to heavy-duty 8,000-pound axles with ABS drum brakes.

Grand Design publishes 16,400 pounds of GVWR against 13,100 dry, leaving 3,300 pounds of payload, and a 30-gallon fuel station rather than the flagship's 60. Two things on this plan are worth stating exactly as the factory does rather than tidying up: the black tank is the larger one at 104 gallons against 52 gallons of grey — the reverse of the flagship Momentum's split, and published that way — and the second of the two awnings is listed as optional. At $127,910 it is, oddly, the most expensive G-Class fifth wheel on the MSRP list despite being the smallest; the bigger 394G lists for less. That is the factory's own price sheet, not a transcription error.

Momentum is Grand Design's toy-hauler family, and it spans four rosters across both tow types. The full-size Momentum fifth wheel is the flagship — a 101-inch wide-body coach on MORryde independent suspension with disc brakes, carrying a 60-gallon dual fuel station. The Momentum G-Class fifth wheel sits below it on MORryde CRE3000 suspension and a Rotoflex pin box with a 30-gallon fuel station, and the G-Class travel trailer puts that same garage behind a bumper pull. The Momentum MAV is the compact end — the lightest and cheapest way into a Momentum garage, and the one roster with no fuel station at all. The 320G on this page is highlighted; each other profiled plan links to its own page. The full MY2027 catalogue runs to 28 floorplans across the four rosters; eight are profiled in depth here and the rest are catalogued on the line hub with their weights.