Head to head
Ifor Williams HB510XL vs Lider 39770
The Lider 39770 is 860kg lighter empty. The Ifor Williams HB510XL is rated 1.9 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB510XL weighs 860kg more empty.
- Gross weight: the Ifor Williams HB510XL is rated 1.9 tonnes heavier gross.
Specifications side by side
| Ifor Williams HB510XL | Lider 39770 | |
|---|---|---|
| Gross weight | 3500kg | 1600kg |
| Unladen weight | 1290kg | 430kg |
| Payload | 2210kg | - |
| Internal length | 4.25m | - |
| Internal width | 1.74m | - |
| Internal bed | - | 361 x 185 x 11cm |
| Axles | - | 1 |
| Brakes | - | Braked |
Sources: Ifor Williams HB510XL, Lider 39770. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the HB510XL if...
- you want one that is rated 1.9 tonnes heavier gross
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
Buy or hire the 39770 if...
- you want one that is 860kg lighter empty
A lighter single-axle car transporter for owners of small cars, motorhomes-with-tow-cars or similar, sized to be towed by a mid-range family car.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Ifor Williams HB510XL and the Lider 39770?
The Lider 39770 is 860kg lighter empty. The Ifor Williams HB510XL is rated 1.9 tonnes heavier gross. The Ifor Williams HB510XL is a an extra-length double horsebox trailer; the Lider 39770 is a a braked single-axle car transporter trailer rated at 1600kg gross weight..
Which is lighter, the Ifor Williams HB510XL or the Lider 39770?
The Lider 39770. It is 860kg lighter empty than the Ifor Williams HB510XL.
Can I tow the Ifor Williams HB510XL or the Lider 39770 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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