Head to head
Ifor Williams CT136 vs Ifor Williams HBX506
The Ifor Williams CT136 is 465kg lighter empty. The Ifor Williams HBX506 is rated 1.2 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HBX506 weighs 465kg more empty.
- Gross weight: the Ifor Williams HBX506 is rated 1.2 tonnes heavier gross.
Specifications side by side
| Ifor Williams CT136 | Ifor Williams HBX506 | |
|---|---|---|
| Gross weight | 1,400kg single axle / 2,000kg twin axle / 2,600kg CT136HD | 2600kg |
| Unladen weight | 400kg single axle / 495kg twin axle | 865kg |
| Bed | 4.00m x 1.84m | - |
| Payload | - | 1735kg |
| Internal length | - | 3.26m |
| Internal width | - | 1.67m |
Sources: Ifor Williams CT136, Ifor Williams HBX506. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the CT136 if...
- you want one that is 465kg lighter empty
The accessible end of car transport, for towing a road car, a track-day car or a small classic. Motorsport and classic-car owners tend toward the twin-axle and HD versions for the higher gross weight and the tie-down provision.
Full CT136 specifications →Buy or hire the HBX506 if...
- you want one that is rated 1.2 tonnes heavier gross
A mid-size horsebox for owners moving one or two horses who want the updated HBX styling and features rather than the standard HB range trailer.
Listed by
- R M Trailer Centre - Middlesbrough, North Ormesby
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams CT136 and the Ifor Williams HBX506?
The Ifor Williams CT136 is 465kg lighter empty. The Ifor Williams HBX506 is rated 1.2 tonnes heavier gross. The Ifor Williams CT136 is a flatbed car transporter, single or twin axle; the Ifor Williams HBX506 is a a double horsebox trailer from Ifor Williams' HBX range.
Which is lighter, the Ifor Williams CT136 or the Ifor Williams HBX506?
The Ifor Williams CT136. It is 465kg lighter empty than the Ifor Williams HBX506.
Can I tow the Ifor Williams CT136 or the Ifor Williams HBX506 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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