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Head to head

Ifor Williams GH146 vs Richardson Trailers Supreme Ultra

The Ifor Williams GH146 is 190kg lighter empty.

Last reviewed 13 September 2026

Ifor Williams GH146
Ifor Williams GH146 - image: blains.co.uk
Supreme Ultra
Richardson Trailers Supreme Ultra

Key differences

Specifications side by side

Ifor Williams GH146Richardson Trailers Supreme Ultra
Unladen weight910kg1100 kg
Gross weight3500kg-
Payload2590kg-
Internal bed4.285m 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

Full GH146 specifications →

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

Full Supreme Ultra specifications →

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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