Head to head
Ifor Williams GD85 vs Lider 39920
The Ifor Williams GD85 is rated 650kg heavier gross. The Lider 39920 is 25kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams GD85 is rated 650kg heavier gross.
- Unladen weight: the Ifor Williams GD85 weighs 25kg more empty.
Specifications side by side
| Ifor Williams GD85 | Lider 39920 | |
|---|---|---|
| Gross weight | 1,400kg single axle / 2,700kg twin axle | 750kg |
| Unladen weight | 395kg single axle / 485kg twin axle | 370kg |
| Brakes | Braked, auto-reverse over-run | Unbraked |
| Internal bed | 2.5m x 1.58m (8ft 2in x 5ft 2in) | - |
| Internal length | - | 230cm |
| Internal width | - | 135cm |
| Internal height | - | 157cm |
| Axles | - | 1 |
Sources: Ifor Williams GD85, Lider 39920. 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 rated 650kg heavier gross
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 39920 if...
- you want one that is 25kg 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 GD85 and the Lider 39920?
The Ifor Williams GD85 is rated 650kg heavier gross. The Lider 39920 is 25kg lighter empty. The Ifor Williams GD85 is a general duty box trailer, single or twin axle; the Lider 39920 is a an unbraked single-axle enclosed box van trailer rated at 750kg gross weight..
Which is lighter, the Ifor Williams GD85 or the Lider 39920?
The Lider 39920. It is 25kg lighter empty than the Ifor Williams GD85.
Can I tow the Ifor Williams GD85 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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