Head to head
Ifor Williams GX125 HD vs Ifor Williams LM146
The Ifor Williams LM146 is 25kg lighter empty and carries 25kg more.
Last reviewed 13 September 2026


Key differences
- Unladen weight: the Ifor Williams GX125 HD weighs 25kg more empty.
- Payload: the Ifor Williams LM146 carries 25kg more.
Specifications side by side
| Ifor Williams GX125 HD | Ifor Williams LM146 | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 760kg | 735kg |
| Payload | 2740kg | 2765kg |
| Internal bed | 3.66m x 1.57m | - |
| Overall length | - | 5.60m |
| Overall width | - | 2.10m |
| Bed | - | 4.23m / 13'9" ((internal) length); 1.98m / 6'5" ((internal) width) |
| Tyres | - | 195/60R12C |
Sources: Ifor Williams GX125 HD, Ifor Williams LM146. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GX125 HD if...
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 LM146 if...
- you want one that is 25kg lighter empty
- you want one that carries 25kg more
The LM146 is a general-purpose flatbed aimed at landscaping, construction and plumbing trades that need a long, wide load bed with a high payload on a single 3500kg-braked chassis. It is used where loads are bulky or awkwardly shaped rather than plant machinery, which typically goes on the ramped GX range instead.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- G-Tec Trailers - Thetford, Holme Hale
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams GX125 HD and the Ifor Williams LM146?
The Ifor Williams LM146 is 25kg lighter empty and carries 25kg more. The Ifor Williams GX125 HD is a a longer heavy-duty plant trailer; the Ifor Williams LM146 is a a twin-axle flatbed goods trailer in the heavier-duty LM range..
Which is lighter, the Ifor Williams GX125 HD or the Ifor Williams LM146?
The Ifor Williams LM146. It is 25kg lighter empty than the Ifor Williams GX125 HD.
Which carries more, the Ifor Williams GX125 HD or the Ifor Williams LM146?
The Ifor Williams LM146, by 25kg.
Can I tow the Ifor Williams GX125 HD or the Ifor Williams LM146 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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