Head to head
Ifor Williams LM166 vs Lider 39770
The Ifor Williams LM166 is rated 1.9 tonnes heavier gross. The Lider 39770 is 365kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams LM166 is rated 1.9 tonnes heavier gross.
- Unladen weight: the Ifor Williams LM166 weighs 365kg more empty.
Specifications side by side
| Ifor Williams LM166 | Lider 39770 | |
|---|---|---|
| Gross weight | 3500kg | 1600kg |
| Unladen weight | 795kg | 430kg |
| Internal bed | 4.77m x 1.98m | 361 x 185 x 11cm |
| Payload | 2705kg | - |
| Axles | - | 1 |
| Brakes | - | Braked |
Sources: Ifor Williams LM166, Lider 39770. 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 1.9 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 39770 if...
- you want one that is 365kg lighter empty
A lighter single-axle car transporter for owners of small cars, motorhomes-with-tow-cars or similar, sized to be towed by a mid-range family car.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Ifor Williams LM166 and the Lider 39770?
The Ifor Williams LM166 is rated 1.9 tonnes heavier gross. The Lider 39770 is 365kg lighter empty. The Ifor Williams LM166 is a a long-bed flatbed trailer; the Lider 39770 is a a braked single-axle car transporter trailer rated at 1600kg gross weight..
Which is lighter, the Ifor Williams LM166 or the Lider 39770?
The Lider 39770. It is 365kg lighter empty than the Ifor Williams LM166.
Can I tow the Ifor Williams LM166 or the Lider 39770 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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