Head to head
Ifor Williams HB510XL vs Sun Way Galaxy G510M16
The Ifor Williams HB510XL is rated 3 tonnes heavier gross and carries 1,650kg more. The Sun Way Galaxy G510M16 is 1.1 tonnes lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams HB510XL is rated 3 tonnes heavier gross.
- Unladen weight: the Ifor Williams HB510XL weighs 1.1 tonnes more empty.
- Payload: the Ifor Williams HB510XL carries 1,650kg more.
Specifications side by side
| Ifor Williams HB510XL | Sun Way Galaxy G510M16 | |
|---|---|---|
| Gross weight | 3500kg | 500 / 600 / 650 / 750 kg (modular rating) |
| Unladen weight | 1290kg | 190 kg |
| Payload | 2210kg | up to 560 kg |
| Internal length | 4.25m | - |
| Internal width | 1.74m | - |
| Length | - | 470 - 600 cm |
| Width | - | 181 cm |
| Axles | - | Single, unbraked |
| Suitable boat length | - | up to 4.80 m |
Sources: Ifor Williams HB510XL, Sun Way Galaxy G510M16. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the HB510XL if...
- you want one that is rated 3 tonnes heavier gross
- you want one that carries 1,650kg more
For owners of taller or longer horses who find the standard HB511 too tight, giving extra internal length on the same 3500kg chassis so it stays towable by a suitably rated 4x4.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Buy or hire the Galaxy G510M16 if...
- you want one that is 1.1 tonnes 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 HB510XL and the Sun Way Galaxy G510M16?
The Ifor Williams HB510XL is rated 3 tonnes heavier gross and carries 1,650kg more. The Sun Way Galaxy G510M16 is 1.1 tonnes lighter empty. The Ifor Williams HB510XL is a an extra-length double horsebox trailer; 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 HB510XL or the Sun Way Galaxy G510M16?
The Sun Way Galaxy G510M16. It is 1.1 tonnes lighter empty than the Ifor Williams HB510XL.
Which carries more, the Ifor Williams HB510XL or the Sun Way Galaxy G510M16?
The Ifor Williams HB510XL, by 1,650kg.
Can I tow the Ifor Williams HB510XL 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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