Head to head
Brian James A-Max 305 vs Stewart GX 15 FT
The Stewart GX 15 FT is rated 12.4 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Stewart GX 15 FT is rated 12.4 tonnes heavier gross.
Specifications side by side
| Brian James A-Max 305 | Stewart GX 15 FT | |
|---|---|---|
| Gross weight | 2600kg | 15,000kg |
| Payload | 2035kg | - |
| Internal bed | 4.3m x 1.96m | - |
| Length | - | 7,900-9,700mm (26-32ft) |
| Tare weight | - | 3,980kg |
| Axles | - | 125mm dia., 10-stud, 420x180mm brakes |
| Tyres | - | 385/65Rx22.5 standard, 435/50Rx19.5 flotation option |
Sources: Brian James A-Max 305, Stewart GX 15 FT. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the A-Max 305 if...
Suits owners of larger saloons or estate cars who have outgrown the shorter A-Max 210 but do not need a full car-transporter range trailer. The extra bed length and payload give more margin for a heavier road car.
Listed by
- A47 Barwell Trailers Sales Hire Service Ltd - Leicester, Barwell
Buy or hire the GX 15 FT if...
- you want one that is rated 12.4 tonnes heavier gross
A 15-tonne flat trailer from Scottish maker Stewart Trailers, built for farms and hire fleets moving bulky loads such as bales or machinery. The choice of standard or flotation tyres lets it be set up for road use or softer ground.
Listed by
- Rising Sun Trailer Hire - York
Common questions
What is the difference between the Brian James A-Max 305 and the Stewart GX 15 FT?
The Stewart GX 15 FT is rated 12.4 tonnes heavier gross. The Brian James A-Max 305 is a a longer, higher-capacity version of the A-Max flatbed car trailer; the Stewart GX 15 FT is a twin-axle flat trailer for agricultural and general haulage use.
Can I tow the Brian James A-Max 305 or the Stewart GX 15 FT on a car licence?
Stewart GX 15 FT is rated over 3,500kg gross, which is beyond what a car can tow in the UK.
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