Head to head
Ifor Williams GX126 vs Ifor Williams HB510XL
The Ifor Williams GX126 is 525kg lighter empty and carries 525kg more. The Ifor Williams HB510XL is 59cm (2ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB510XL weighs 525kg more empty.
- Payload: the Ifor Williams GX126 carries 525kg more.
- Internal length: the Ifor Williams HB510XL is 59cm (2ft) longer inside.
- Internal width: the Ifor Williams GX126 is 10cm wider inside.
Specifications side by side
| Ifor Williams GX126 | Ifor Williams HB510XL | |
|---|---|---|
| Internal length | 3.66m / 12'0" | 4.25m |
| Internal width | 1.84m / 6'0" | 1.74m |
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 765kg (Skids); 795kg (Ramp) | 1290kg |
| Payload | 2735kg (Skids); 2705kg (Ramp) | 2210kg |
| Overall length | 5.70m | - |
| Overall width | 2.30m | - |
| Tyres | 155/70R12C | - |
Sources: Ifor Williams GX126, Ifor Williams HB510XL. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GX126 if...
- you want one that is 525kg lighter empty
- you want one that carries 525kg more
- you want one that is 10cm wider inside
The GX126 is Ifor Williams' mainstream plant trailer for mini diggers, dumpers and similar machinery on a single-axle-per-side, 3500kg braked chassis. Hirers usually pick the Ramp version for self-loading and the Skids version where a separate loading ramp or forklift is already available.
Full GX126 specifications →Buy or hire the HB510XL if...
- you want one that is 59cm (2ft) longer inside
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 Ifor Williams GX126 and the Ifor Williams HB510XL?
The Ifor Williams GX126 is 525kg lighter empty and carries 525kg more. The Ifor Williams HB510XL is 59cm (2ft) longer inside. The Ifor Williams GX126 is a a twin-axle plant trailer available in Skids and Ramp variants for carrying machinery.; the Ifor Williams HB510XL is a an extra-length double horsebox trailer.
Which is lighter, the Ifor Williams GX126 or the Ifor Williams HB510XL?
The Ifor Williams GX126. It is 525kg lighter empty than the Ifor Williams HB510XL.
Which carries more, the Ifor Williams GX126 or the Ifor Williams HB510XL?
The Ifor Williams GX126, by 525kg.
Can I tow the Ifor Williams GX126 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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