Head to head
Graham Edwards GP85DB vs Ifor Williams HB510XL
The Graham Edwards GP85DB is 865kg lighter empty. The Ifor Williams HB510XL is rated 900kg heavier gross and carries 35kg more.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB510XL weighs 865kg more empty.
- Gross weight: the Ifor Williams HB510XL is rated 900kg heavier gross.
- Payload: the Ifor Williams HB510XL carries 35kg more.
Specifications side by side
| Graham Edwards GP85DB | Ifor Williams HB510XL | |
|---|---|---|
| Gross weight | 2600kg | 3500kg |
| Unladen weight | 425kg | 1290kg |
| Payload | 2175kg | 2210kg |
| Internal bed | 8'2" x 5' | - |
| Axles | Tandem | - |
| Brakes | Braked | - |
| Internal length | - | 4.25m |
| Internal width | - | 1.74m |
Sources: Graham Edwards GP85DB, Ifor Williams HB510XL. 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 865kg 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 HB510XL if...
- you want one that is rated 900kg heavier gross
- you want one that carries 35kg more
For owners of taller or longer horses who find the standard HB511 too tight, giving extra internal length on the same 3500kg chassis so it stays towable by a suitably rated 4x4.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Common questions
What is the difference between the Graham Edwards GP85DB and the Ifor Williams HB510XL?
The Graham Edwards GP85DB is 865kg lighter empty. The Ifor Williams HB510XL is rated 900kg heavier gross and carries 35kg more. The Graham Edwards GP85DB is a a tandem-axle braked general-purpose dropside trailer; the Ifor Williams HB510XL is a an extra-length double horsebox trailer.
Which is lighter, the Graham Edwards GP85DB or the Ifor Williams HB510XL?
The Graham Edwards GP85DB. It is 865kg lighter empty than the Ifor Williams HB510XL.
Which carries more, the Graham Edwards GP85DB or the Ifor Williams HB510XL?
The Ifor Williams HB510XL, by 35kg.
Can I tow the Graham Edwards GP85DB or the Ifor Williams HB510XL 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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