Head to head
Ifor Williams TT3621 vs Lider 39400E
The Lider 39400E is 905kg lighter empty. The Ifor Williams TT3621 is rated 3 tonnes heavier gross and is 1.89m (6ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams TT3621 weighs 905kg more empty.
- Gross weight: the Ifor Williams TT3621 is rated 3 tonnes heavier gross.
- Internal length: the Ifor Williams TT3621 is 1.89m (6ft) longer inside.
- Internal width: the Ifor Williams TT3621 is 80cm (2.5ft) wider inside.
Specifications side by side
| Ifor Williams TT3621 | Lider 39400E | |
|---|---|---|
| Gross weight | 3500kg | 500kg |
| Unladen weight | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) | 85kg |
| Internal length | 3.62m / 11'9" | 173cm |
| Internal width | 1.95m / 6'5" | 115cm |
| Payload | 2510kg (195/60R12C) or 2500kg (185/70R13C) | - |
| Axles | - | 1 |
| Brakes | - | Unbraked |
Sources: Ifor Williams TT3621, Lider 39400E. 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 3 tonnes heavier gross
- you want one that is 1.89m (6ft) longer inside
- you want one that is 80cm (2.5ft) 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 39400E if...
- you want one that is 905kg lighter empty
The lightest motorcycle trailer in the Lider range, aimed at owners of smaller bikes who want the least weight to tow and store.
Full 39400E specifications →Common questions
What is the difference between the Ifor Williams TT3621 and the Lider 39400E?
The Lider 39400E is 905kg lighter empty. The Ifor Williams TT3621 is rated 3 tonnes heavier gross and is 1.89m (6ft) longer inside. The Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping; the Lider 39400E is a an unbraked single-axle trailer for carrying one motorcycle, lighter than the 29420/39401..
Which is lighter, the Ifor Williams TT3621 or the Lider 39400E?
The Lider 39400E. It is 905kg lighter empty than the Ifor Williams TT3621.
Can I tow the Ifor Williams TT3621 or the Lider 39400E 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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