Head to head
Ifor Williams HB506 vs Sun Way Galaxy G510M16
The Ifor Williams HB506 is rated 2.1 tonnes heavier gross. The Sun Way Galaxy G510M16 is 730kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams HB506 is rated 2.1 tonnes heavier gross.
- Unladen weight: the Ifor Williams HB506 weighs 730kg more empty.
Specifications side by side
| Ifor Williams HB506 | Sun Way Galaxy G510M16 | |
|---|---|---|
| Gross weight | 2,600kg | 500 / 600 / 650 / 750 kg (modular rating) |
| Unladen weight | 920kg | 190 kg |
| Internal length | 3.16m | - |
| Internal width | 1.67m | - |
| Brakes | Braked | - |
| Payload | - | up to 560 kg |
| Length | - | 470 - 600 cm |
| Width | - | 181 cm |
| Axles | - | Single, unbraked |
| Suitable boat length | - | up to 4.80 m |
Sources: Ifor Williams HB506, Sun Way Galaxy G510M16. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the HB506 if...
- you want one that is rated 2.1 tonnes heavier gross
The mainstream two-horse trailer in Britain, used by private owners and small yards. Its comparatively low unladen weight for the class is the practical point: it widens the range of 4x4s and large SUVs that can legally and comfortably tow it.
Listed by
- R M Trailer Centre - Middlesbrough, North Ormesby
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Horse Trailer Sales - Robertsbridge, Staplecross
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Buy or hire the Galaxy G510M16 if...
- you want one that is 730kg lighter empty
The Galaxy G510M16 suits owners of small motorboats up to about 4.8m, using a multi-roller bed rather than bunks so the hull can be winched on and off easily at a slipway. Its modular rating up to 750kg gross weight lets an owner choose the plate that matches their towing licence.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Ifor Williams HB506 and the Sun Way Galaxy G510M16?
The Ifor Williams HB506 is rated 2.1 tonnes heavier gross. The Sun Way Galaxy G510M16 is 730kg lighter empty. The Ifor Williams HB506 is a two-horse trailer, twin axle; the Sun Way Galaxy G510M16 is a a single-axle multi-roller boat trailer from French manufacturer Sun Way, built for launching and recovering small motorboats..
Which is lighter, the Ifor Williams HB506 or the Sun Way Galaxy G510M16?
The Sun Way Galaxy G510M16. It is 730kg lighter empty than the Ifor Williams HB506.
Can I tow the Ifor Williams HB506 or the Sun Way Galaxy G510M16 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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