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Head to head

Ifor Williams HBX506 vs PRG Trailers ProLine Beavertail

The PRG Trailers ProLine Beavertail is rated 400kg heavier gross and carries 240kg more.

Last reviewed 13 September 2026

Ifor Williams HBX506
Ifor Williams HBX506 - image: Norfolk Trailers
PRG Trailers ProLine Beavertail
PRG Trailers ProLine Beavertail - image: prgtrailers.co.uk

Key differences

Specifications side by side

Ifor Williams HBX506PRG Trailers ProLine Beavertail
Gross weight2600kg3,000kg (twin axle, 10in wheels) up to 3,500kg (twin axle 13in wheels, and all tri axle models)
Payload1735kg1,975kg to 2,550kg depending on configuration
Unladen weight865kg-
Internal length3.26m-
Internal width1.67m-
Internal bed-4.88m to 6.40m long, 2.13m or 2.28m wide
Axles-Twin or Tri
Brakes-Braked (Alko AAA self-adjusting brakes)

Sources: Ifor Williams HBX506, PRG Trailers ProLine Beavertail. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the HBX506 if...

A mid-size horsebox for owners moving one or two horses who want the updated HBX styling and features rather than the standard HB range trailer.

Listed by

Full HBX506 specifications →

Buy or hire the ProLine Beavertail if...

  • you want one that is rated 400kg heavier gross
  • you want one that carries 240kg more

The ProLine Beavertail suits owners of low-ground-clearance cars, since its beavertail ramp lets a car drive on and off without grounding, unlike a flat-bed transporter. PRG offers it across twin and tri-axle chassis so buyers can match the trailer to a 3000kg or 3500kg tow limit.

Listed by

Full ProLine Beavertail specifications →

Common questions

What is the difference between the Ifor Williams HBX506 and the PRG Trailers ProLine Beavertail?

The PRG Trailers ProLine Beavertail is rated 400kg heavier gross and carries 240kg more. The Ifor Williams HBX506 is a a double horsebox trailer from Ifor Williams' HBX range; the PRG Trailers ProLine Beavertail is a pRG Trailers' open beavertail car trailer range, built with a hinged tail ramp for loading low cars..

Which carries more, the Ifor Williams HBX506 or the PRG Trailers ProLine Beavertail?

The PRG Trailers ProLine Beavertail, by 240kg.

Can I tow the Ifor Williams HBX506 or the PRG Trailers ProLine Beavertail 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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