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Head to head

Ifor Williams CT166 vs Lider 39450

The Ifor Williams CT166 is rated 2,750kg heavier gross. The Lider 39450 is 635kg lighter empty.

Last reviewed 13 September 2026

Ifor Williams CT166
Ifor Williams CT166 - image: Shropshire Trailer Hire
Lider 39450
Lider 39450 - image: lidertrailers.co.uk

Key differences

Specifications side by side

Ifor Williams CT166Lider 39450
Gross weight3500kg750kg
Unladen weight885kg250kg
Payload2615kg-
Internal bed4.87m x 1.90m-
Internal length-251cm
Internal width-133cm
Internal height-40cm
Axles-2
Brakes-Unbraked

Sources: Ifor Williams CT166, Lider 39450. 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 rated 2,750kg 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

Full CT166 specifications →

Buy or hire the 39450 if...

  • you want one that is 635kg lighter empty

Gives buyers the stability of a twin-axle trailer for garden and general loads while staying under the unbraked weight limit.

Listed by

Full 39450 specifications →

Common questions

What is the difference between the Ifor Williams CT166 and the Lider 39450?

The Ifor Williams CT166 is rated 2,750kg heavier gross. The Lider 39450 is 635kg lighter empty. The Ifor Williams CT166 is a a tilt-bed car and machinery transporter trailer; the Lider 39450 is a an unbraked twin-axle wooden-sided general purpose trailer rated at 750kg gross weight..

Which is lighter, the Ifor Williams CT166 or the Lider 39450?

The Lider 39450. It is 635kg lighter empty than the Ifor Williams CT166.

Can I tow the Ifor Williams CT166 or the Lider 39450 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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