Head to head
Brian James Race Box vs Lider 39400E
The Brian James Race Box is rated 2.5 tonnes heavier gross and is 2.27m (7.5ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Brian James Race Box is rated 2.5 tonnes heavier gross.
- Internal length: the Brian James Race Box is 2.27m (7.5ft) longer inside.
- Internal width: the Brian James Race Box is 80cm (2.5ft) wider inside.
Specifications side by side
| Brian James Race Box | Lider 39400E | |
|---|---|---|
| Gross weight | 3000kg | 500kg |
| Internal width | 1.95m | 115cm |
| Internal length | 4.0m / 4.5m / 5.0m | 173cm |
| Axles | Twin | 1 |
| Payload | up to 1885kg | - |
| Unladen weight | - | 85kg |
| Brakes | - | Unbraked |
Sources: Brian James Race Box, Lider 39400E. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Race Box if...
- you want one that is rated 2.5 tonnes heavier gross
- you want one that is 2.27m (7.5ft) longer inside
- you want one that is 80cm (2.5ft) wider 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
Buy or hire the 39400E if...
The lightest motorcycle trailer in the Lider range, aimed at owners of smaller bikes who want the least weight to tow and store.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Brian James Race Box and the Lider 39400E?
The Brian James Race Box is rated 2.5 tonnes heavier gross and is 2.27m (7.5ft) longer inside. The Brian James Race Box is a a fully enclosed twin-axle car transporter for classics and small race cars; the Lider 39400E is a an unbraked single-axle trailer for carrying one motorcycle, lighter than the 29420/39401..
Can I tow the Brian James Race Box or the Lider 39400E 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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