Head to head
Ifor Williams GD85 vs Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS)
The Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) is rated 2.1 tonnes heavier gross. The Ifor Williams GD85 is 350kg lighter empty.
Last reviewed 13 September 2026
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Key differences
- Gross weight: the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) is rated 2.1 tonnes heavier gross.
- Unladen weight: the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) weighs 350kg more empty.
Specifications side by side
| Ifor Williams GD85 | Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) | |
|---|---|---|
| Gross weight | 1,400kg single axle / 2,700kg twin axle | 3500kg |
| Unladen weight | 395kg single axle / 485kg twin axle | 745kg |
| Internal bed | 2.5m x 1.58m (8ft 2in x 5ft 2in) | - |
| Brakes | Braked, auto-reverse over-run | - |
| Payload | - | 2755kg |
| Internal size | - | 3.04 x 1.68 |
| Bed height | - | 430mm |
Sources: Ifor Williams GD85, Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS). Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GD85 if...
- you want one that is 350kg lighter empty
The entry point of the Ifor Williams general duty range and one of the most common working trailers in Britain. Smallholders, gardeners and tradespeople buy it for everyday hauling without needing a heavy tow vehicle, and the twin-axle version roughly doubles the payload for a modest gain in unladen weight.
Full GD85 specifications →Buy or hire the Challenger 50 Beavertail 10 x 5 (AD35105BTS) if...
- you want one that is rated 2.1 tonnes heavier gross
A UK built galvanised plant trailer with a low loading beavertail for mini diggers, scissor lifts and rollers. Common on mini digger hire fleets and with small groundworks firms.
Full Challenger 50 Beavertail 10 x 5 (AD35105BTS) specifications →Common questions
What is the difference between the Ifor Williams GD85 and the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS)?
The Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) is rated 2.1 tonnes heavier gross. The Ifor Williams GD85 is 350kg lighter empty. The Ifor Williams GD85 is a general duty box trailer, single or twin axle; the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) is a 10 ft x 5 ft 3.5 tonne beavertail plant trailer.
Which is lighter, the Ifor Williams GD85 or the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS)?
The Ifor Williams GD85. It is 350kg lighter empty than the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS).
Can I tow the Ifor Williams GD85 or the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) 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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