Head to head
Bockmann Portax K vs Brian James A-Max 305
The Brian James A-Max 305 carries 770kg more and is rated 200kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Payload: the Brian James A-Max 305 carries 770kg more.
- Gross weight: the Brian James A-Max 305 is rated 200kg heavier gross.
Specifications side by side
| Bockmann Portax K | Brian James A-Max 305 | |
|---|---|---|
| Gross weight | 2400kg | 2600kg |
| Payload | 1265kg | 2035kg |
| Internal length | 3560mm | - |
| Internal width | 1750mm | - |
| Internal height | 2350mm | - |
| Internal bed | - | 4.3m x 1.96m |
Sources: Bockmann Portax K, Brian James A-Max 305. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Portax K if...
A mid-range Portax with a front unloading ramp, bought by owners who value being able to lead a horse out the front rather than reversing it out. It sits below the Big Portax models in size and price.
Listed by
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
Buy or hire the A-Max 305 if...
- you want one that carries 770kg more
- you want one that is rated 200kg heavier gross
Suits owners of larger saloons or estate cars who have outgrown the shorter A-Max 210 but do not need a full car-transporter range trailer. The extra bed length and payload give more margin for a heavier road car.
Listed by
- A47 Barwell Trailers Sales Hire Service Ltd - Leicester, Barwell
Common questions
What is the difference between the Bockmann Portax K and the Brian James A-Max 305?
The Brian James A-Max 305 carries 770kg more and is rated 200kg heavier gross. The Bockmann Portax K is a aluminium 2-horse trailer with front exit; the Brian James A-Max 305 is a a longer, higher-capacity version of the A-Max flatbed car trailer.
Which carries more, the Bockmann Portax K or the Brian James A-Max 305?
The Brian James A-Max 305, by 770kg.
Can I tow the Bockmann Portax K or the Brian James A-Max 305 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.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.