Head to head
Bateson Derby vs Ifor Williams LM166
The Ifor Williams LM166 carries 1,680kg more and is rated 1.8 tonnes heavier gross. The Bateson Derby is 120kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams LM166 carries 1,680kg more.
- Gross weight: the Ifor Williams LM166 is rated 1.8 tonnes heavier gross.
- Unladen weight: the Ifor Williams LM166 weighs 120kg more empty.
Specifications side by side
| Bateson Derby | Ifor Williams LM166 | |
|---|---|---|
| Gross weight | 1,700kg | 3500kg |
| Unladen weight | 675kg | 795kg |
| Payload | approx. 1,025kg | 2705kg |
| Internal length | 2.70m | - |
| Internal width | 1.50m | - |
| Internal bed | - | 4.77m x 1.98m |
Sources: Bateson Derby, Ifor Williams LM166. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Derby if...
- you want one that is 120kg lighter empty
A light double horse trailer that can be towed by a large saloon car rather than needing a 4x4, thanks to its low unladen weight. It suits owners moving one or two horses locally who want to avoid buying a heavier, purpose-built tow vehicle.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Buy or hire the LM166 if...
- you want one that carries 1,680kg more
- you want one that is rated 1.8 tonnes heavier gross
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
Common questions
What is the difference between the Bateson Derby and the Ifor Williams LM166?
The Ifor Williams LM166 carries 1,680kg more and is rated 1.8 tonnes heavier gross. The Bateson Derby is 120kg lighter empty. The Bateson Derby is a lightweight rear-unload double horse trailer; the Ifor Williams LM166 is a a long-bed flatbed trailer.
Which is lighter, the Bateson Derby or the Ifor Williams LM166?
The Bateson Derby. It is 120kg lighter empty than the Ifor Williams LM166.
Which carries more, the Bateson Derby or the Ifor Williams LM166?
The Ifor Williams LM166, by 1,680kg.
Can I tow the Bateson Derby or the Ifor Williams LM166 on a car licence?
Yes, as far as the licence goes. Both are rated at or under 3,500kg gross, and a car (B) licence has covered towing up to 3,500kg since 16 December 2021. Your car still has to be rated to tow the loaded weight - check the handbook or the VIN plate.
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