Head to head
Ifor Williams TT3621 vs Lider Cadix
The Lider Cadix is 822kg lighter empty. The Ifor Williams TT3621 is rated 2,750kg heavier gross and is 1.57m (5ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams TT3621 weighs 822kg more empty.
- Gross weight: the Ifor Williams TT3621 is rated 2,750kg heavier gross.
- Internal length: the Ifor Williams TT3621 is 1.57m (5ft) longer inside.
- Internal width: the Ifor Williams TT3621 is 63cm (2ft) wider inside.
Specifications side by side
| Ifor Williams TT3621 | Lider Cadix | |
|---|---|---|
| Gross weight | 3500kg | 750kg |
| Unladen weight | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) | 168kg |
| Internal length | 3.62m / 11'9" | 205cm |
| Internal width | 1.95m / 6'5" | 132cm |
| Payload | 2510kg (195/60R12C) or 2500kg (185/70R13C) | - |
| Internal height | - | 39cm |
| Axles | - | 1 |
| Brakes | - | Unbraked |
Sources: Ifor Williams TT3621, Lider Cadix. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the TT3621 if...
- you want one that is rated 2,750kg heavier gross
- you want one that is 1.57m (5ft) longer inside
- you want one that is 63cm (2ft) wider inside
The largest Ifor Williams tipper. A 3.6m by 1.95m body is chosen for bulky, lighter loads - green waste, clearance and bark - where volume runs out before weight does, and it is a staple of plant and tool hire fleets. Formerly sold as the TT126.
Full TT3621 specifications →Buy or hire the Cadix if...
- you want one that is 822kg lighter empty
A mid-sized camping trailer for families wanting more load space than the Alicante for tents and holiday gear. The 205cm bed is the practical difference: it takes a folded awning or a family tent lengthways, which the shorter Alicante will not. Still unbraked, so no servicing beyond lights and bearings.
Full Cadix specifications →Common questions
What is the difference between the Ifor Williams TT3621 and the Lider Cadix?
The Lider Cadix is 822kg lighter empty. The Ifor Williams TT3621 is rated 2,750kg heavier gross and is 1.57m (5ft) longer inside. The Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping; the Lider Cadix is a a small unbraked single-axle camping and general purpose trailer with a lift-off lid..
Which is lighter, the Ifor Williams TT3621 or the Lider Cadix?
The Lider Cadix. It is 822kg lighter empty than the Ifor Williams TT3621.
Can I tow the Ifor Williams TT3621 or the Lider Cadix 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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