Head to head
Erde PM320 vs Stewart GX 18-23 S
The Stewart GX 18-23 S is rated 19.7 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Stewart GX 18-23 S is rated 19.7 tonnes heavier gross.
Specifications side by side
| Erde PM320 | Stewart GX 18-23 S | |
|---|---|---|
| Gross weight | 300kg | 20,000kg |
| Unladen weight | 60kg | - |
| Payload | 236kg | - |
| Internal bed | 200 x 112cm | - |
| Body size | - | 6,700 x 2,450 x 1,500mm |
| Cubic capacity | - | 23m3 grain, 39m3 silage |
| Tare weight | - | 5,900kg |
| Axles | - | 125mm dia., 10-stud, 420x180mm brakes |
Sources: Erde PM320, Stewart GX 18-23 S. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the PM320 if...
Near-identical to the PM310, rated for slightly heavier motorcycles up to 236kg. The two are the same trailer to look at, so the number to check before buying is the wet weight of the bike you intend to carry.
Listed by
- 1Stop Trailers Ltd - Sudbury, Little Waldingfield
- Trailer Centre - Rowley Regis
Buy or hire the GX 18-23 S if...
- you want one that is rated 19.7 tonnes heavier gross
An 18-23 tonne tipping trailer built for grain and silage haulage, with an easy-sheet system so one person can cover a loaded trailer without climbing on top. Its monocoque steel body gives it the extra capacity over Stewart's standard flat trailers.
Listed by
- Rising Sun Trailer Hire - York
Common questions
What is the difference between the Erde PM320 and the Stewart GX 18-23 S?
The Stewart GX 18-23 S is rated 19.7 tonnes heavier gross. The Erde PM320 is a a small unbraked single-axle trailer for carrying one motorcycle.; the Stewart GX 18-23 S is a twin-axle tipping grain and silage trailer with an easy-sheet cover system.
Can I tow the Erde PM320 or the Stewart GX 18-23 S on a car licence?
Stewart GX 18-23 S is rated over 3,500kg gross, which is beyond what a car can tow in the UK.
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