Head to head
Ifor Williams GX125 HD vs Ifor Williams LM166
The Ifor Williams LM166 has a bed 1.11m (3.5ft) longer. The Ifor Williams GX125 HD is 35kg lighter empty and carries 35kg more.
Last reviewed 13 September 2026
Key differences
- Internal bed: the Ifor Williams LM166 has a bed 1.11m (3.5ft) longer.
- Unladen weight: the Ifor Williams LM166 weighs 35kg more empty.
- Payload: the Ifor Williams GX125 HD carries 35kg more.
Specifications side by side
| Ifor Williams GX125 HD | Ifor Williams LM166 | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 760kg | 795kg |
| Payload | 2740kg | 2705kg |
| Internal bed | 3.66m x 1.57m | 4.77m x 1.98m |
Sources: Ifor Williams GX125 HD, Ifor Williams LM166. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GX125 HD if...
- you want one that is 35kg lighter empty
- you want one that carries 35kg more
For plant hire firms carrying longer machines such as excavators with extended dipper arms or tracked dumpers that need the extra bed length over the GX105HD.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the LM166 if...
- you want one that has a bed 1.11m (3.5ft) longer
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
- G-Tec Trailers - Thetford, Holme Hale
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Common questions
What is the difference between the Ifor Williams GX125 HD and the Ifor Williams LM166?
The Ifor Williams LM166 has a bed 1.11m (3.5ft) longer. The Ifor Williams GX125 HD is 35kg lighter empty and carries 35kg more. The Ifor Williams GX125 HD is a a longer heavy-duty plant trailer; the Ifor Williams LM166 is a a long-bed flatbed trailer.
Which is lighter, the Ifor Williams GX125 HD or the Ifor Williams LM166?
The Ifor Williams GX125 HD. It is 35kg lighter empty than the Ifor Williams LM166.
Which carries more, the Ifor Williams GX125 HD or the Ifor Williams LM166?
The Ifor Williams GX125 HD, by 35kg.
Can I tow the Ifor Williams GX125 HD 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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