Head to head
Ifor Williams LM166 vs Richardson Trailers Supreme Ultra
The Ifor Williams LM166 is 305kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Richardson Trailers Supreme Ultra weighs 305kg more empty.
Specifications side by side
| Ifor Williams LM166 | Richardson Trailers Supreme Ultra | |
|---|---|---|
| Unladen weight | 795kg | 1100 kg |
| Gross weight | 3500kg | - |
| Payload | 2705kg | - |
| Internal bed | 4.77m x 1.98m | - |
| 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 LM166, Richardson Trailers Supreme Ultra. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the LM166 if...
- you want one that is 305kg lighter empty
Bought by contractors and hauliers who regularly carry longer loads, such as fencing materials or several pallets, and need more deck length than the LM106 or LM126 provide.
Listed by
- East Midlands Trailers - Leicester, Thrussington
- G-Tec Trailers - Thetford, Holme Hale
- 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 LM166 and the Richardson Trailers Supreme Ultra?
The Ifor Williams LM166 is 305kg lighter empty. The Ifor Williams LM166 is a a long-bed flatbed 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 LM166 or the Richardson Trailers Supreme Ultra?
The Ifor Williams LM166. It is 305kg lighter empty than the Richardson Trailers Supreme Ultra.
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