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Brian James Race Transporter 7 vs Lider 39450

The Brian James Race Transporter 7 is rated 2,750kg heavier gross and is 77cm (2.5ft) wider inside.

Last reviewed 13 September 2026

Brian James Race Transporter 7
Brian James Race Transporter 7 - image: yorkshire.trek-trailers.co.uk
Lider 39450
Lider 39450 - image: lidertrailers.co.uk

Key differences

Specifications side by side

Brian James Race Transporter 7Lider 39450
Gross weight3500kg750kg
Internal width2.1m / 2.3m133cm
AxlesTwin or Tri2
Payloadup to 2235kg-
Internal bed5.5m / 6.0m long-
Unladen weight-250kg
Internal length-251cm
Internal height-40cm
Brakes-Unbraked

Sources: Brian James Race Transporter 7, Lider 39450. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the Race Transporter 7 if...

  • you want one that is rated 2,750kg heavier gross
  • you want one that is 77cm (2.5ft) wider inside

Sits at the top of the Race Transporter range for teams hauling larger or wider vehicles where the Race Transporter 6 is still not wide enough. The twin/tri-axle choice lets buyers trade a little unladen weight against stability at the widest bed option.

Full Race Transporter 7 specifications →

Buy or hire the 39450 if...

Gives buyers the stability of a twin-axle trailer for garden and general loads while staying under the unbraked weight limit.

Listed by

Full 39450 specifications →

Common questions

What is the difference between the Brian James Race Transporter 7 and the Lider 39450?

The Brian James Race Transporter 7 is rated 2,750kg heavier gross and is 77cm (2.5ft) wider inside. The Brian James Race Transporter 7 is a the largest Race Transporter, offered in twin or tri-axle form for heavier vehicles; the Lider 39450 is a an unbraked twin-axle wooden-sided general purpose trailer rated at 750kg gross weight..

Can I tow the Brian James Race Transporter 7 or the Lider 39450 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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