Head to head
Equi-Trek Space-Treka M vs Ifor Williams HB511
The Ifor Williams HB511 is 120kg lighter empty and is rated 200kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Equi-Trek Space-Treka M weighs 120kg more empty.
- Gross weight: the Ifor Williams HB511 is rated 200kg heavier gross.
Specifications side by side
| Equi-Trek Space-Treka M | Ifor Williams HB511 | |
|---|---|---|
| Unladen weight | From 1120kg | 1,000kg |
| Gross weight | 2500kg (max) | 2,700kg |
| Body length | 3756mm (12ft 3in) (external) | - |
| Body width | 1835mm (6ft 1in) (external) | - |
| Horse area length | 2665mm (8ft 9in) (internal) | - |
| Internal length | - | 3.52m |
| Internal width | - | 1.79m |
| Brakes | - | Braked |
Sources: Equi-Trek Space-Treka M, Ifor Williams HB511. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Space-Treka M if...
Equi-Trek Space-Treka M, carried by UK dealers and hire companies listed on GetBrent for sale. Horseboxes and horse trailers like this are chosen by private owners and competition yards moving horses to shows, vets and new yards.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Trek-Trailers Suffolk - Bury Saint Edmunds
- Trek-Trailers Three Counties - Hereford
Buy or hire the HB511 if...
- you want one that is 120kg lighter empty
- you want one that is rated 200kg heavier gross
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 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
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Equi-Trek Space-Treka M and the Ifor Williams HB511?
The Ifor Williams HB511 is 120kg lighter empty and is rated 200kg heavier gross. The Equi-Trek Space-Treka M is a horsebox or horse trailer; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.
Which is lighter, the Equi-Trek Space-Treka M or the Ifor Williams HB511?
The Ifor Williams HB511. It is 120kg lighter empty than the Equi-Trek Space-Treka M.
Can I tow the Equi-Trek Space-Treka M or the Ifor Williams HB511 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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