Head to head
Equi-Trek Evolution vs Ifor Williams HB511
The Ifor Williams HB511 is 3.5 tonnes lighter empty. The Equi-Trek Evolution is rated 4.5 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Equi-Trek Evolution weighs 3.5 tonnes more empty.
- Gross weight: the Equi-Trek Evolution is rated 4.5 tonnes heavier gross.
Specifications side by side
| Equi-Trek Evolution | Ifor Williams HB511 | |
|---|---|---|
| Gross weight | 7200kg | 2,700kg |
| Unladen weight | 4500kg | 1,000kg |
| Overall length | 8.354m | - |
| Overall width | 2.375m | - |
| Overall height | 3.185m | - |
| Internal length | - | 3.52m |
| Internal width | - | 1.79m |
| Brakes | - | Braked |
Sources: Equi-Trek Evolution, Ifor Williams HB511. 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 4.5 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 HB511 if...
- you want one that is 3.5 tonnes lighter empty
The wider step up from the HB506, for larger horses or owners who want more room in transit. The extra 12cm of internal width and 36cm of length cost 80kg unladen, which is worth checking against your tow vehicle before choosing it over the HB506.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Trek-Trailers Suffolk - Bury Saint Edmunds
- R M Trailer Centre - Middlesbrough, North Ormesby
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Horse Trailer Sales - Robertsbridge, Staplecross
- Trek-Trailers Three Counties - Hereford
Common questions
What is the difference between the Equi-Trek Evolution and the Ifor Williams HB511?
The Ifor Williams HB511 is 3.5 tonnes lighter empty. The Equi-Trek Evolution is rated 4.5 tonnes heavier gross. The Equi-Trek Evolution is a 7.2 tonne motorised horsebox for up to three horses; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.
Which is lighter, the Equi-Trek Evolution or the Ifor Williams HB511?
The Ifor Williams HB511. It is 3.5 tonnes lighter empty than the Equi-Trek Evolution.
Can I tow the Equi-Trek Evolution or the Ifor Williams HB511 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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