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Head to head

Bockmann TL-ALK 2513/135 vs Stewart GX 18-23 S

The Stewart GX 18-23 S is rated 18,650kg heavier gross.

Last reviewed 13 September 2026

Bockmann TL-ALK 2513/135
Bockmann TL-ALK 2513/135 - image: Bckmann UK Trailers & Horseboxes
GX 18-23 S
Stewart GX 18-23 S

Key differences

Specifications side by side

Bockmann TL-ALK 2513/135Stewart GX 18-23 S
Gross weight1350kg20,000kg
Axles1125mm dia., 10-stud, 420x180mm brakes
Payload1106kg-
Internal bed2515mm x 1300mm-
BrakesBraked (overrun)-
Body size-6,700 x 2,450 x 1,500mm
Cubic capacity-23m3 grain, 39m3 silage
Tare weight-5,900kg

Sources: Bockmann TL-ALK 2513/135, Stewart GX 18-23 S. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the TL-ALK 2513/135 if...

A single-axle box trailer that also tips, giving private and trade users a lightweight option for both general loads and loose materials. It fits within a car's braked towing limit for many vehicles.

Listed by

Full TL-ALK 2513/135 specifications →

Buy or hire the GX 18-23 S if...

  • you want one that is rated 18,650kg heavier gross

An 18-23 tonne tipping trailer built for grain and silage haulage, with an easy-sheet system so one person can cover a loaded trailer without climbing on top. Its monocoque steel body gives it the extra capacity over Stewart's standard flat trailers.

Listed by

Full GX 18-23 S specifications →

Common questions

What is the difference between the Bockmann TL-ALK 2513/135 and the Stewart GX 18-23 S?

The Stewart GX 18-23 S is rated 18,650kg heavier gross. The Bockmann TL-ALK 2513/135 is a small tipping low-loader box trailer; the Stewart GX 18-23 S is a twin-axle tipping grain and silage trailer with an easy-sheet cover system.

Can I tow the Bockmann TL-ALK 2513/135 or the Stewart GX 18-23 S on a car licence?

Stewart GX 18-23 S is rated over 3,500kg gross, which is beyond what a car can tow in the UK.

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