Head to head
Ifor Williams Business Inabox vs Lider 39401
The Lider 39401 is 1,770kg lighter empty. The Ifor Williams Business Inabox is rated 2,750kg heavier gross and is 2.67m (9ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams Business Inabox weighs 1,770kg more empty.
- Gross weight: the Ifor Williams Business Inabox is rated 2,750kg heavier gross.
- Internal length: the Ifor Williams Business Inabox is 2.67m (9ft) longer inside.
- Internal width: the Ifor Williams Business Inabox is 92cm (3ft) wider inside.
Specifications side by side
| Ifor Williams Business Inabox | Lider 39401 | |
|---|---|---|
| Gross weight | 3500kg | 750kg |
| Unladen weight | 1900kg (Workshop M) | 130kg |
| Internal length | 4.45m (Workshop M) | 178cm |
| Internal width | 2.18m | 126cm |
| Overall length | 5.96m (Workshop M) | - |
| Axles | - | 1 |
| Brakes | - | Unbraked |
Sources: Ifor Williams Business Inabox, Lider 39401. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Business Inabox if...
- you want one that is rated 2,750kg heavier gross
- you want one that is 2.67m (9ft) longer inside
- you want one that is 92cm (3ft) wider inside
A trailer shell fitted out as a mobile workshop, shop or catering unit rather than a load carrier. Tradespeople and mobile caterers buy it to take a fitted-out workspace to a site rather than build one into a van.
Listed by
- Norfolk Trailers - Norwich
Buy or hire the 39401 if...
- you want one that is 1,770kg lighter empty
A step up from the 39400E for owners of larger or heavier motorcycles who still want to stay under the unbraked 750kg threshold.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Ifor Williams Business Inabox and the Lider 39401?
The Lider 39401 is 1,770kg lighter empty. The Ifor Williams Business Inabox is rated 2,750kg heavier gross and is 2.67m (9ft) longer inside. The Ifor Williams Business Inabox is a trailer-based mobile workshop, boxvan or catering/retail unit; the Lider 39401 is a an unbraked single-axle trailer for carrying one motorcycle..
Which is lighter, the Ifor Williams Business Inabox or the Lider 39401?
The Lider 39401. It is 1,770kg lighter empty than the Ifor Williams Business Inabox.
Can I tow the Ifor Williams Business Inabox or the Lider 39401 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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