Head to head
Bockmann Big Portax WCF -Stall- vs Brian James A Transporter (A4)
The Bockmann Big Portax WCF -Stall- is rated 700kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Bockmann Big Portax WCF -Stall- is rated 700kg heavier gross.
Specifications side by side
| Bockmann Big Portax WCF -Stall- | Brian James A Transporter (A4) | |
|---|---|---|
| Gross weight | 2700kg | 2,000kg to 3,000kg depending on variant |
| Payload | 1310kg | - |
| Internal length | 4150mm | - |
| Internal width | 1855mm | - |
| Internal height | 2400mm | - |
| Bed | - | 3.7m x 1.8m up to 5.0m x 2.0m depending on variant |
| Brakes | - | Braked, tandem axle |
Sources: Bockmann Big Portax WCF -Stall-, Brian James A Transporter (A4). Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Big Portax WCF -Stall- if...
- you want one that is rated 700kg heavier gross
The largest Portax body with a walk-in tack room and a stall-type partition rather than a fixed centre post, aimed at owners of big horses or those who want to load side by side. It is a step up in space from the standard Big Portax.
Listed by
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
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
Common questions
What is the difference between the Bockmann Big Portax WCF -Stall- and the Brian James A Transporter (A4)?
The Bockmann Big Portax WCF -Stall- is rated 700kg heavier gross. The Bockmann Big Portax WCF -Stall- is a large aluminium horse trailer with a stall partition system; the Brian James A Transporter (A4) is a open flatbed car transporter, twin axle.
Can I tow the Bockmann Big Portax WCF -Stall- or the Brian James A Transporter (A4) 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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