Head to head
Ifor Williams CT166 vs Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS)
The Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) is 140kg lighter empty and carries 140kg more.
Last reviewed 13 September 2026
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Key differences
- Unladen weight: the Ifor Williams CT166 weighs 140kg more empty.
- Payload: the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) carries 140kg more.
Specifications side by side
| Ifor Williams CT166 | Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 885kg | 745kg |
| Payload | 2615kg | 2755kg |
| Internal bed | 4.87m x 1.90m | - |
| Internal size | - | 3.04 x 1.68 |
| Bed height | - | 430mm |
Sources: Ifor Williams CT166, 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 CT166 if...
Bought by garages, recovery operators and plant hire firms who load low vehicles or compact machinery by tilting the deck to ground level instead of driving up loading ramps. The narrower CT166 bed suits standard cars and single machines.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the Challenger 50 Beavertail 10 x 5 (AD35105BTS) if...
- you want one that is 140kg lighter empty
- you want one that carries 140kg more
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 CT166 and the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS)?
The Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS) is 140kg lighter empty and carries 140kg more. The Ifor Williams CT166 is a a tilt-bed car and machinery transporter trailer; 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 CT166 or the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS)?
The Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS). It is 140kg lighter empty than the Ifor Williams CT166.
Which carries more, the Ifor Williams CT166 or the Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS)?
The Indespension Challenger 50 Beavertail 10 x 5 (AD35105BTS), by 140kg.
Can I tow the Ifor Williams CT166 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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