Head to head
Ifor Williams CT166 vs Ifor Williams GD105
The Ifor Williams CT166 has a bed 1.76m (6ft) longer and is rated 800kg heavier gross. The Ifor Williams GD105 is 300kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Internal bed: the Ifor Williams CT166 has a bed 1.76m (6ft) longer.
- Unladen weight: the Ifor Williams CT166 weighs 300kg more empty.
- Gross weight: the Ifor Williams CT166 is rated 800kg heavier gross.
Specifications side by side
| Ifor Williams CT166 | Ifor Williams GD105 | |
|---|---|---|
| Gross weight | 3500kg | 2,700kg |
| Unladen weight | 885kg | 585kg |
| Internal bed | 4.87m x 1.90m | 3.11m x 1.58m (10ft 2in x 5ft 2in) |
| Payload | 2615kg | - |
| Brakes | - | Braked |
Sources: Ifor Williams CT166, Ifor Williams GD105. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the CT166 if...
- you want one that has a bed 1.76m (6ft) longer
- you want one that is rated 800kg heavier gross
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 GD105 if...
- you want one that is 300kg lighter empty
The same market as the GD85 with about 60cm more bed length, which is the difference between fitting a load and not. Landscapers and anyone moving long materials or a quad choose it for the length rather than the payload, which is unchanged.
Listed by
- Blendworth Trailers - Rowland's Castle
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams CT166 and the Ifor Williams GD105?
The Ifor Williams CT166 has a bed 1.76m (6ft) longer and is rated 800kg heavier gross. The Ifor Williams GD105 is 300kg lighter empty. The Ifor Williams CT166 is a a tilt-bed car and machinery transporter trailer; the Ifor Williams GD105 is a general duty box trailer, twin axle, longer bed.
Which is lighter, the Ifor Williams CT166 or the Ifor Williams GD105?
The Ifor Williams GD105. It is 300kg lighter empty than the Ifor Williams CT166.
Can I tow the Ifor Williams CT166 or the Ifor Williams GD105 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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