Head to head
Graham Edwards GP85DB vs Ifor Williams HB511
The Graham Edwards GP85DB is 575kg lighter empty. The Ifor Williams HB511 is rated 100kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB511 weighs 575kg more empty.
- Gross weight: the Ifor Williams HB511 is rated 100kg heavier gross.
Specifications side by side
| Graham Edwards GP85DB | Ifor Williams HB511 | |
|---|---|---|
| Gross weight | 2600kg | 2,700kg |
| Unladen weight | 425kg | 1,000kg |
| Brakes | Braked | Braked |
| Payload | 2175kg | - |
| Internal bed | 8'2" x 5' | - |
| Axles | Tandem | - |
| Internal length | - | 3.52m |
| Internal width | - | 1.79m |
Sources: Graham Edwards GP85DB, Ifor Williams HB511. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GP85DB if...
- you want one that is 575kg lighter empty
A farm and smallholder trailer for loose or bagged loads, bales or livestock kit, built to Graham Edwards' tandem-axle braked general-purpose spec rather than the lighter single-axle unbraked version.
Listed by
- G-Tec Trailers - Thetford, Holme Hale
Buy or hire the HB511 if...
- you want one that is rated 100kg 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 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 Graham Edwards GP85DB and the Ifor Williams HB511?
The Graham Edwards GP85DB is 575kg lighter empty. The Ifor Williams HB511 is rated 100kg heavier gross. The Graham Edwards GP85DB is a a tandem-axle braked general-purpose dropside trailer; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.
Which is lighter, the Graham Edwards GP85DB or the Ifor Williams HB511?
The Graham Edwards GP85DB. It is 575kg lighter empty than the Ifor Williams HB511.
Can I tow the Graham Edwards GP85DB 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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