Head to head
Bockmann Grand Master SR vs Brian James Race Box
The Brian James Race Box carries 423kg more and is 20cm wider inside.
Last reviewed 13 September 2026
Key differences
- Payload: the Brian James Race Box carries 423kg more.
- Internal width: the Brian James Race Box is 20cm wider inside.
- Gross weight: the Brian James Race Box is rated 300kg heavier gross.
- Internal length: the Brian James Race Box is 10cm longer inside.
Specifications side by side
| Bockmann Grand Master SR | Brian James Race Box | |
|---|---|---|
| Gross weight | 2700kg | 3000kg |
| Payload | 1462kg | up to 1885kg |
| Internal length | 3900mm | 4.0m / 4.5m / 5.0m |
| Internal width | 1750mm | 1.95m |
| Internal height | 2300mm | - |
| Axles | - | Twin |
Sources: Bockmann Grand Master SR, Brian James Race Box. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Grand Master SR if...
The top trim of the Master line, with a walk-in tack room and centre-post partition for owners who want more storage and easier loading than the basic Master. Suits liveries and competition riders travelling one or two larger horses.
Listed by
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
Buy or hire the Race Box if...
- you want one that carries 423kg more
- you want one that is 20cm wider inside
- you want one that is rated 300kg heavier gross
- you want one that is 10cm longer inside
Positioned for classic car owners and smaller motorsport teams who want their car fully enclosed and weatherproof but do not need the wider bed of the Race Sport or Race Transporter ranges. The narrower internal width suits a single classic or compact race car rather than a modern GT car.
Listed by
- Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK - Wellington, Poole
Common questions
What is the difference between the Bockmann Grand Master SR and the Brian James Race Box?
The Brian James Race Box carries 423kg more and is 20cm wider inside. The Bockmann Grand Master SR is a larger polyester 2-horse trailer with walk-in tack room; the Brian James Race Box is a a fully enclosed twin-axle car transporter for classics and small race cars.
Which carries more, the Bockmann Grand Master SR or the Brian James Race Box?
The Brian James Race Box, by 423kg.
Can I tow the Bockmann Grand Master SR or the Brian James Race Box 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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