Head to head
Brian James A Transporter (A4) vs Ifor Williams GX105
The Ifor Williams GX105 is rated 700kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams GX105 is rated 700kg heavier gross.
Specifications side by side
| Brian James A Transporter (A4) | Ifor Williams GX105 | |
|---|---|---|
| Gross weight | 2,000kg to 3,000kg depending on variant | 2700kg |
| Bed | 3.7m x 1.8m up to 5.0m x 2.0m depending on variant | - |
| Brakes | Braked, tandem axle | - |
| Unladen weight | - | 675kg |
| Payload | - | 2025kg |
| Internal bed | - | 3.03m x 1.57m |
Sources: Brian James A Transporter (A4), Ifor Williams GX105. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the A Transporter (A4) if...
One of the most common car trailers in Britain, bought by trade and private owners for moving road cars, project cars and small vans. The reason it sells is the spread of bed length and gross weight combinations, which lets you match the trailer to the tow car rather than the other way round.
Listed by
- Fieldfare Trailer Centre - Salisbury
- Bicester Trailer Centre - Bicester
- Trek-Trailers Three Counties - Hereford
Buy or hire the GX105 if...
- you want one that is rated 700kg heavier gross
A plant hire and groundworks trailer for skid-steers or mini excavators that need a longer bed than the GX84 but not the higher 3500kg gross weight of the GX105HD.
Listed by
- East Midlands Trailers - Leicester, Thrussington
Common questions
What is the difference between the Brian James A Transporter (A4) and the Ifor Williams GX105?
The Ifor Williams GX105 is rated 700kg heavier gross. The Brian James A Transporter (A4) is a open flatbed car transporter, twin axle; the Ifor Williams GX105 is a a mid-size plant trailer with a skid or ramp loading option.
Can I tow the Brian James A Transporter (A4) or the Ifor Williams GX105 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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