Head to head
Ifor Williams GD85 vs Ifor Williams LM166
The Ifor Williams LM166 is rated 2.1 tonnes heavier gross and has a bed 2.27m (7.5ft) longer. The Ifor Williams GD85 is 400kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams LM166 is rated 2.1 tonnes heavier gross.
- Unladen weight: the Ifor Williams LM166 weighs 400kg more empty.
- Internal bed: the Ifor Williams LM166 has a bed 2.27m (7.5ft) longer.
Specifications side by side
| Ifor Williams GD85 | Ifor Williams LM166 | |
|---|---|---|
| Gross weight | 1,400kg single axle / 2,700kg twin axle | 3500kg |
| Unladen weight | 395kg single axle / 485kg twin axle | 795kg |
| Internal bed | 2.5m x 1.58m (8ft 2in x 5ft 2in) | 4.77m x 1.98m |
| Brakes | Braked, auto-reverse over-run | - |
| Payload | - | 2705kg |
Sources: Ifor Williams GD85, Ifor Williams LM166. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GD85 if...
- you want one that is 400kg lighter empty
The entry point of the Ifor Williams general duty range and one of the most common working trailers in Britain. Smallholders, gardeners and tradespeople buy it for everyday hauling without needing a heavy tow vehicle, and the twin-axle version roughly doubles the payload for a modest gain in unladen weight.
Full GD85 specifications →Buy or hire the LM166 if...
- you want one that is rated 2.1 tonnes heavier gross
- you want one that has a bed 2.27m (7.5ft) 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 GD85 and the Ifor Williams LM166?
The Ifor Williams LM166 is rated 2.1 tonnes heavier gross and has a bed 2.27m (7.5ft) longer. The Ifor Williams GD85 is 400kg lighter empty. The Ifor Williams GD85 is a general duty box trailer, single or twin axle; the Ifor Williams LM166 is a a long-bed flatbed trailer.
Which is lighter, the Ifor Williams GD85 or the Ifor Williams LM166?
The Ifor Williams GD85. It is 400kg lighter empty than the Ifor Williams LM166.
Can I tow the Ifor Williams GD85 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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