Head to head
Bateson Derby vs Ifor Williams TT3621
The Ifor Williams TT3621 carries 1,485kg more and is rated 1.8 tonnes heavier gross. The Bateson Derby is 315kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams TT3621 carries 1,485kg more.
- Gross weight: the Ifor Williams TT3621 is rated 1.8 tonnes heavier gross.
- Unladen weight: the Ifor Williams TT3621 weighs 315kg more empty.
- Internal length: the Ifor Williams TT3621 is 92cm (3ft) longer inside.
- Internal width: the Ifor Williams TT3621 is 45cm (1.5ft) wider inside.
Specifications side by side
| Bateson Derby | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 1,700kg | 3500kg |
| Unladen weight | 675kg | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Payload | approx. 1,025kg | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Internal length | 2.70m | 3.62m / 11'9" |
| Internal width | 1.50m | 1.95m / 6'5" |
Sources: Bateson Derby, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Derby if...
- you want one that is 315kg lighter empty
A light double horse trailer that can be towed by a large saloon car rather than needing a 4x4, thanks to its low unladen weight. It suits owners moving one or two horses locally who want to avoid buying a heavier, purpose-built tow vehicle.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Buy or hire the TT3621 if...
- you want one that carries 1,485kg more
- you want one that is rated 1.8 tonnes heavier gross
- you want one that is 92cm (3ft) longer inside
- you want one that is 45cm (1.5ft) 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.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
- Lancaster trailer hire - ELY
Common questions
What is the difference between the Bateson Derby and the Ifor Williams TT3621?
The Ifor Williams TT3621 carries 1,485kg more and is rated 1.8 tonnes heavier gross. The Bateson Derby is 315kg lighter empty. The Bateson Derby is a lightweight rear-unload double horse trailer; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which is lighter, the Bateson Derby or the Ifor Williams TT3621?
The Bateson Derby. It is 315kg lighter empty than the Ifor Williams TT3621.
Which carries more, the Bateson Derby or the Ifor Williams TT3621?
The Ifor Williams TT3621, by 1,485kg.
Can I tow the Bateson Derby or the Ifor Williams TT3621 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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