Head to head
Brian James Race Transporter 4 vs Ifor Williams GX126
The Ifor Williams GX126 is 415kg lighter empty and carries 415kg more. The Brian James Race Transporter 4 is 28cm wider inside.
Last reviewed 13 September 2026

Key differences
- Unladen weight: the Brian James Race Transporter 4 weighs 415kg more empty.
- Payload: the Ifor Williams GX126 carries 415kg more.
- Internal width: the Brian James Race Transporter 4 is 28cm wider inside.
Specifications side by side
| Brian James Race Transporter 4 | Ifor Williams GX126 | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | from 1180kg | 765kg (Skids); 795kg (Ramp) |
| Payload | up to 2320kg | 2735kg (Skids); 2705kg (Ramp) |
| Internal width | 2.12m | 1.84m / 6'0" |
| Internal bed | 5.0m / 5.5m long | - |
| Axles | Twin | - |
| Overall length | - | 5.70m |
| Overall width | - | 2.30m |
| Internal length | - | 3.66m / 12'0" |
| Tyres | - | 155/70R12C |
Sources: Brian James Race Transporter 4, Ifor Williams GX126. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Race Transporter 4 if...
- you want one that is 28cm wider inside
Aimed at motorsport teams and vehicle recovery operators who need a hydraulic tilt-bed for easy low loading of a single car. It is the entry point into the numbered Race Transporter range, below the 5, 6 and 7.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Bicester Trailer Centre - Bicester
- Trek-Trailers Suffolk - Bury Saint Edmunds
- Trek-Trailers Three Counties - Hereford
Buy or hire the GX126 if...
- you want one that is 415kg lighter empty
- you want one that carries 415kg more
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 →Common questions
What is the difference between the Brian James Race Transporter 4 and the Ifor Williams GX126?
The Ifor Williams GX126 is 415kg lighter empty and carries 415kg more. The Brian James Race Transporter 4 is 28cm wider inside. The Brian James Race Transporter 4 is a an open twin-axle hydraulic tilt-bed car transporter; the Ifor Williams GX126 is a a twin-axle plant trailer available in Skids and Ramp variants for carrying machinery..
Which is lighter, the Brian James Race Transporter 4 or the Ifor Williams GX126?
The Ifor Williams GX126. It is 415kg lighter empty than the Brian James Race Transporter 4.
Which carries more, the Brian James Race Transporter 4 or the Ifor Williams GX126?
The Ifor Williams GX126, by 415kg.
Can I tow the Brian James Race Transporter 4 or the Ifor Williams GX126 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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