Head to head
Ifor Williams GH146 vs Richardson Trailers Supreme Ultra
The Ifor Williams GH146 is 190kg lighter empty.
Last reviewed 13 September 2026

Key differences
- Unladen weight: the Richardson Trailers Supreme Ultra weighs 190kg more empty.
Specifications side by side
| Ifor Williams GH146 | Richardson Trailers Supreme Ultra | |
|---|---|---|
| Unladen weight | 910kg | 1100 kg |
| Gross weight | 3500kg | - |
| Payload | 2590kg | - |
| Internal bed | 4.285m x 1.84m | - |
| Maximum gross weight | - | 3200 kg |
| Overall length | - | 5.00 m (16 ft 5 in) |
| Internal length | - | 3.54 m (11 ft 7 in) |
| Internal width | - | 1.80 m (5 ft 11 in) |
Sources: Ifor Williams GH146, Richardson Trailers Supreme Ultra. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GH146 if...
- you want one that is 190kg lighter empty
Aimed at plant hire operators who need the longest bed in the GH range for larger excavators or two smaller machines, with a tri-axle chassis to keep payload up within the 3500kg limit.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the Supreme Ultra if...
The Supreme Ultra suits owners looking for a well-established British-built two-horse trailer able to carry a pair of taller horses, since sellers describe it as taking two horses up to about 17.2hh. As a long-running Richardson model it is more often found on the used market now than ordered new.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Common questions
What is the difference between the Ifor Williams GH146 and the Richardson Trailers Supreme Ultra?
The Ifor Williams GH146 is 190kg lighter empty. The Ifor Williams GH146 is a a tri-axle long-bed plant trailer; the Richardson Trailers Supreme Ultra is a a two-horse trailer from British manufacturer Richardson, part of its Supreme range of horse trailers..
Which is lighter, the Ifor Williams GH146 or the Richardson Trailers Supreme Ultra?
The Ifor Williams GH146. It is 190kg lighter empty than the Richardson Trailers Supreme Ultra.
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