Head to head
Ifor Williams LM166 vs Lider 39920
The Ifor Williams LM166 is rated 2,750kg heavier gross. The Lider 39920 is 425kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams LM166 is rated 2,750kg heavier gross.
- Unladen weight: the Ifor Williams LM166 weighs 425kg more empty.
Specifications side by side
| Ifor Williams LM166 | Lider 39920 | |
|---|---|---|
| Gross weight | 3500kg | 750kg |
| Unladen weight | 795kg | 370kg |
| Payload | 2705kg | - |
| Internal bed | 4.77m x 1.98m | - |
| Internal length | - | 230cm |
| Internal width | - | 135cm |
| Internal height | - | 157cm |
| Axles | - | 1 |
| Brakes | - | Unbraked |
Sources: Ifor Williams LM166, Lider 39920. 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 rated 2,750kg 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
- G-Tec Trailers - Thetford, Holme Hale
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the 39920 if...
- you want one that is 425kg lighter empty
The smallest box van in the range, for buyers who want lockable, weatherproof storage on the move without moving up to a braked twin-axle trailer.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Ifor Williams LM166 and the Lider 39920?
The Ifor Williams LM166 is rated 2,750kg heavier gross. The Lider 39920 is 425kg lighter empty. The Ifor Williams LM166 is a a long-bed flatbed trailer; the Lider 39920 is a an unbraked single-axle enclosed box van trailer rated at 750kg gross weight..
Which is lighter, the Ifor Williams LM166 or the Lider 39920?
The Lider 39920. It is 425kg lighter empty than the Ifor Williams LM166.
Can I tow the Ifor Williams LM166 or the Lider 39920 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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