Head to head
Ifor Williams BV126 vs Ifor Williams HB511
The Ifor Williams BV126 is rated 800kg heavier gross and is 8cm longer inside. The Ifor Williams HB511 is 6cm wider inside.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams BV126 is rated 800kg heavier gross.
- Internal width: the Ifor Williams HB511 is 6cm wider inside.
- Internal length: the Ifor Williams BV126 is 8cm longer inside.
- Unladen weight: the Ifor Williams HB511 weighs 20kg more empty.
Specifications side by side
| Ifor Williams BV126 | Ifor Williams HB511 | |
|---|---|---|
| Gross weight | 3500kg | 2,700kg |
| Unladen weight | 980kg | 1,000kg |
| Internal length | 3.60m | 3.52m |
| Internal width | 1.73m | 1.79m |
| Payload | 2520kg | - |
| Axles | Twin (dual) | - |
| Brakes | - | Braked |
Sources: Ifor Williams BV126, Ifor Williams HB511. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the BV126 if...
- you want one that is rated 800kg heavier gross
- you want one that is 8cm longer inside
- you want one that is 20kg lighter empty
Aimed at businesses moving bulkier equipment or several machines that need to travel enclosed and secure, where the BV105 is too narrow or too light. Its 3500kg rating means a car-derived van or 4x4 with a suitable tow rating can still pull it.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the HB511 if...
- you want one that is 6cm wider inside
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 Ifor Williams BV126 and the Ifor Williams HB511?
The Ifor Williams BV126 is rated 800kg heavier gross and is 8cm longer inside. The Ifor Williams HB511 is 6cm wider inside. The Ifor Williams BV126 is a a wider, higher-capacity enclosed box van trailer; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.
Which is lighter, the Ifor Williams BV126 or the Ifor Williams HB511?
The Ifor Williams BV126. It is 20kg lighter empty than the Ifor Williams HB511.
Can I tow the Ifor Williams BV126 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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