Head to head
Bockmann Grand Master SR vs Ifor Williams LM166
The Ifor Williams LM166 carries 1,243kg more and is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams LM166 carries 1,243kg more.
- Gross weight: the Ifor Williams LM166 is rated 800kg heavier gross.
Specifications side by side
| Bockmann Grand Master SR | Ifor Williams LM166 | |
|---|---|---|
| Gross weight | 2700kg | 3500kg |
| Payload | 1462kg | 2705kg |
| Internal length | 3900mm | - |
| Internal width | 1750mm | - |
| Internal height | 2300mm | - |
| Unladen weight | - | 795kg |
| Internal bed | - | 4.77m x 1.98m |
Sources: Bockmann Grand Master SR, Ifor Williams LM166. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Grand Master SR if...
The top trim of the Master line, with a walk-in tack room and centre-post partition for owners who want more storage and easier loading than the basic Master. Suits liveries and competition riders travelling one or two larger horses.
Listed by
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
Buy or hire the LM166 if...
- you want one that carries 1,243kg more
- you want one that is rated 800kg heavier gross
Bought by contractors and hauliers who regularly carry longer loads, such as fencing materials or several pallets, and need more deck length than the LM106 or LM126 provide.
Listed by
- G-Tec Trailers - Thetford, Holme Hale
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Common questions
What is the difference between the Bockmann Grand Master SR and the Ifor Williams LM166?
The Ifor Williams LM166 carries 1,243kg more and is rated 800kg heavier gross. The Bockmann Grand Master SR is a larger polyester 2-horse trailer with walk-in tack room; the Ifor Williams LM166 is a a long-bed flatbed trailer.
Which carries more, the Bockmann Grand Master SR or the Ifor Williams LM166?
The Ifor Williams LM166, by 1,243kg.
Can I tow the Bockmann Grand Master SR or the Ifor Williams LM166 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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