Head to head
Ifor Williams HB403 vs Lider 39450
The Lider 39450 is 517kg lighter empty and is 3cm wider inside. The Ifor Williams HB403 is rated 850kg heavier gross and is 57cm (2ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB403 weighs 517kg more empty.
- Gross weight: the Ifor Williams HB403 is rated 850kg heavier gross.
- Internal length: the Ifor Williams HB403 is 57cm (2ft) longer inside.
- Internal width: the Lider 39450 is 3cm wider inside.
Specifications side by side
| Ifor Williams HB403 | Lider 39450 | |
|---|---|---|
| Gross weight | 1600kg | 750kg |
| Unladen weight | 767kg | 250kg |
| Internal length | 3.08m | 251cm |
| Internal width | 1.30m | 133cm |
| Payload | 833kg | - |
| Internal height | - | 40cm |
| Axles | - | 2 |
| Brakes | - | Unbraked |
Sources: Ifor Williams HB403, Lider 39450. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the HB403 if...
- you want one that is rated 850kg heavier gross
- you want one that is 57cm (2ft) longer inside
The smallest trailer in the HB horsebox range, bought by owners of a single horse or a couple of ponies who want the lightest legal option that can still be towed by a mid-size car.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Buy or hire the 39450 if...
- you want one that is 517kg lighter empty
- you want one that is 3cm wider inside
Gives buyers the stability of a twin-axle trailer for garden and general loads while staying under the unbraked weight limit.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Ifor Williams HB403 and the Lider 39450?
The Lider 39450 is 517kg lighter empty and is 3cm wider inside. The Ifor Williams HB403 is rated 850kg heavier gross and is 57cm (2ft) longer inside. The Ifor Williams HB403 is a a compact single-horse or two-pony horsebox trailer; the Lider 39450 is a an unbraked twin-axle wooden-sided general purpose trailer rated at 750kg gross weight..
Which is lighter, the Ifor Williams HB403 or the Lider 39450?
The Lider 39450. It is 517kg lighter empty than the Ifor Williams HB403.
Can I tow the Ifor Williams HB403 or the Lider 39450 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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