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Head to head

Ifor Williams GP126 vs Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED)

The Ifor Williams GP126 is 35kg lighter empty.

Last reviewed 13 September 2026

Ifor Williams GP126
Ifor Williams GP126 - image: other Ifor Williams model shown; image from barnwelltrailers.co.uk
Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED)
Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED) - image: Indespension

Key differences

Specifications side by side

Ifor Williams GP126Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED)
Gross weight3500kg3500kg
Unladen weight780kg (skids) or 795kg (ramp)815kg
Internal length3.66m/12'-
Internal width1.78m/5'10"-
Payload-2685kg
Internal size-3.65 x 1.83
Bed height-430mm

Sources: Ifor Williams GP126, 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 GP126 if...

  • you want one that is 35kg lighter empty

A twin-axle general purpose trailer from Ifor Williams's plant range, used to carry mini diggers, dumpers and other small plant, or general building materials. Available with loading ramps or skids.

Listed by

Full GP126 specifications →

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 Ifor Williams GP126 and the Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED)?

The Ifor Williams GP126 is 35kg lighter empty. The Ifor Williams GP126 is a general purpose plant trailer; the Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED) is a 12 ft x 6 ft 3.5 tonne beavertail plant trailer.

Which is lighter, the Ifor Williams GP126 or the Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED)?

The Ifor Williams GP126. It is 35kg lighter empty than the Indespension Challenger 50 Beavertail 12 x 6 (AD35126BTSLED).

Can I tow the Ifor Williams GP126 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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