Head to head
Brian James Race Transporter 7 vs Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED)
The Brian James Race Transporter 7 is a the largest race transporter, offered in twin or tri-axle form for heavier vehicles. The Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED) is a 12 ft x 6 ft 3.5 tonne beavertail plant trailer.
Last reviewed 13 September 2026
Specifications side by side
| Brian James Race Transporter 7 | Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED) | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Payload | up to 2235kg | 2685kg |
| Internal bed | 5.5m / 6.0m long | - |
| Internal width | 2.1m / 2.3m | - |
| Axles | Twin or Tri | - |
| Unladen weight | - | 815kg |
| Internal size | - | 3.65 x 1.83 |
| Bed height | - | 430mm |
Sources: Brian James Race Transporter 7, Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED). Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Race Transporter 7 if...
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.
Listed by
- Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK - Wellington, Poole
Buy or hire the Challenger 50 Beavertail 12 x 6 (AD35126BTSLED) if...
The larger Challenger 50 beavertail for bigger mini excavators and compact plant. Used by groundworks firms and hire fleets that need extra bed length.
Full Challenger 50 Beavertail 12 x 6 (AD35126BTSLED) specifications →Common questions
What is the difference between the Brian James Race Transporter 7 and the Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED)?
The Brian James Race Transporter 7 is a the largest Race Transporter, offered in twin or tri-axle form for heavier vehicles; the Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED) is a 12 ft x 6 ft 3.5 tonne beavertail plant trailer.
Can I tow the Brian James Race Transporter 7 or the Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED) 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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