Head to head
Equi-Trek Evolution vs Ifor Williams GD85
The Ifor Williams GD85 is 4,105kg lighter empty. The Equi-Trek Evolution is rated 5.8 tonnes heavier gross.
Last reviewed 13 September 2026

Key differences
- Unladen weight: the Equi-Trek Evolution weighs 4,105kg more empty.
- Gross weight: the Equi-Trek Evolution is rated 5.8 tonnes heavier gross.
Specifications side by side
| Equi-Trek Evolution | Ifor Williams GD85 | |
|---|---|---|
| Gross weight | 7200kg | 1,400kg single axle / 2,700kg twin axle |
| Unladen weight | 4500kg | 395kg single axle / 485kg twin axle |
| Overall length | 8.354m | - |
| Overall width | 2.375m | - |
| Overall height | 3.185m | - |
| Internal bed | - | 2.5m x 1.58m (8ft 2in x 5ft 2in) |
| Brakes | - | Braked, auto-reverse over-run |
Sources: Equi-Trek Evolution, Ifor Williams GD85. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Evolution if...
- you want one that is rated 5.8 tonnes heavier gross
A large motorised horsebox on an Iveco chassis for yards or professionals moving up to three horses or four ponies, requiring a 7.5 tonne category licence to drive. It sits toward the top of Equi-Trek's motorised range alongside the Endeavour.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Trek-Trailers Three Counties - Hereford
Buy or hire the GD85 if...
- you want one that is 4,105kg 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 →Common questions
What is the difference between the Equi-Trek Evolution and the Ifor Williams GD85?
The Ifor Williams GD85 is 4,105kg lighter empty. The Equi-Trek Evolution is rated 5.8 tonnes heavier gross. The Equi-Trek Evolution is a 7.2 tonne motorised horsebox for up to three horses; the Ifor Williams GD85 is a general duty box trailer, single or twin axle.
Which is lighter, the Equi-Trek Evolution or the Ifor Williams GD85?
The Ifor Williams GD85. It is 4,105kg lighter empty than the Equi-Trek Evolution.
Can I tow the Equi-Trek Evolution or the Ifor Williams GD85 on a car licence?
Equi-Trek Evolution is rated over 3,500kg gross, which is beyond what a car can tow in the UK.
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