Head to head
Richardson Trailers Supreme Treble vs Stewart GX 18-23 S
The Stewart GX 18-23 S is rated 17.3 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Stewart GX 18-23 S is rated 17.3 tonnes heavier gross.
Specifications side by side
| Richardson Trailers Supreme Treble | Stewart GX 18-23 S | |
|---|---|---|
| Gross weight | 2,700kg | 20,000kg |
| Capacity | 2 horses forward, 1 pony reversed | - |
| Unladen weight | 1,260kg | - |
| External dimensions | 5.40m long x 2.29m wide x 2.75m high | - |
| Internal dimensions | 3.54m long x 1.80m wide x 2.33m high | - |
| 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: Richardson Trailers Supreme Treble, Stewart GX 18-23 S. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Supreme Treble if...
A three-berth Richardson trailer built for a household with two horses and a pony rather than a full string. The reversed pony bay keeps overall length down compared with three forward-facing berths, which suits smaller yards and tow vehicles.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Buy or hire the GX 18-23 S if...
- you want one that is rated 17.3 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 Richardson Trailers Supreme Treble and the Stewart GX 18-23 S?
The Stewart GX 18-23 S is rated 17.3 tonnes heavier gross. The Richardson Trailers Supreme Treble is a trailer for two horses and a pony, one forward one reversed; 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 Richardson Trailers Supreme Treble 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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