Head to head
Ifor Williams LM166 vs Lider 39400E
The Lider 39400E is 710kg lighter empty. The Ifor Williams LM166 is rated 3 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams LM166 weighs 710kg more empty.
- Gross weight: the Ifor Williams LM166 is rated 3 tonnes heavier gross.
Specifications side by side
| Ifor Williams LM166 | Lider 39400E | |
|---|---|---|
| Gross weight | 3500kg | 500kg |
| Unladen weight | 795kg | 85kg |
| Payload | 2705kg | - |
| Internal bed | 4.77m x 1.98m | - |
| Internal length | - | 173cm |
| Internal width | - | 115cm |
| Axles | - | 1 |
| Brakes | - | Unbraked |
Sources: Ifor Williams LM166, Lider 39400E. 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 3 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
- G-Tec Trailers - Thetford, Holme Hale
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the 39400E if...
- you want one that is 710kg lighter empty
The lightest motorcycle trailer in the Lider range, aimed at owners of smaller bikes who want the least weight to tow and store.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Ifor Williams LM166 and the Lider 39400E?
The Lider 39400E is 710kg lighter empty. The Ifor Williams LM166 is rated 3 tonnes heavier gross. The Ifor Williams LM166 is a a long-bed flatbed trailer; the Lider 39400E is a an unbraked single-axle trailer for carrying one motorcycle, lighter than the 29420/39401..
Which is lighter, the Ifor Williams LM166 or the Lider 39400E?
The Lider 39400E. It is 710kg lighter empty than the Ifor Williams LM166.
Can I tow the Ifor Williams LM166 or the Lider 39400E 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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