Head to head
Ifor Williams CT166 vs Richardson Trailers Supreme Treble
The Ifor Williams CT166 is 375kg lighter empty and is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Richardson Trailers Supreme Treble weighs 375kg more empty.
- Gross weight: the Ifor Williams CT166 is rated 800kg heavier gross.
Specifications side by side
| Ifor Williams CT166 | Richardson Trailers Supreme Treble | |
|---|---|---|
| Gross weight | 3500kg | 2,700kg |
| Unladen weight | 885kg | 1,260kg |
| Payload | 2615kg | - |
| Internal bed | 4.87m x 1.90m | - |
| Capacity | - | 2 horses forward, 1 pony reversed |
| External dimensions | - | 5.40m long x 2.29m wide x 2.75m high |
| Internal dimensions | - | 3.54m long x 1.80m wide x 2.33m high |
Sources: Ifor Williams CT166, Richardson Trailers Supreme Treble. 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 is 375kg lighter empty
- 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 Supreme Treble if...
A three-berth Richardson trailer built for a household with two horses and a pony rather than a full string. The reversed pony bay keeps overall length down compared with three forward-facing berths, which suits smaller yards and tow vehicles.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Common questions
What is the difference between the Ifor Williams CT166 and the Richardson Trailers Supreme Treble?
The Ifor Williams CT166 is 375kg lighter empty and is rated 800kg heavier gross. The Ifor Williams CT166 is a a tilt-bed car and machinery transporter trailer; the Richardson Trailers Supreme Treble is a trailer for two horses and a pony, one forward one reversed.
Which is lighter, the Ifor Williams CT166 or the Richardson Trailers Supreme Treble?
The Ifor Williams CT166. It is 375kg lighter empty than the Richardson Trailers Supreme Treble.
Can I tow the Ifor Williams CT166 or the Richardson Trailers Supreme Treble 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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