Safety and crash test

A poorly secured cargo box turns into a projectile the moment you brake hard or collide — a risk to you, your passengers, and everyone behind you. Before SKiiBOX reached the market, it was independently crash tested by VTI, Sweden's national road and transport research institute, against two separate collision benchmarks. Both runs are published below — the footage, and the numbers exactly as VTI measured them.

Test passed City Crash Test /ISO 11154:2023

Test 1 — City Crash Test / ISO 11154 — Low-Speed Impact

There is no separate standard for cargo boxes carried on a tow bar. So the thresholds from SS-ISO 11154:2023 — written for roof racks — were used instead. The question is simple: in a hard stop or a low-speed crash, does the box hold its load instead of dropping it on the road? It was tested at full load.

Test load 100 kg total on the tow ball — 70 kg cargo + 30 kg box
Method Collision at 16 km/h ± 2 km/h, the established test speed for vehicle-mounted cargo carriers
Pass requirement Impact pulse above 8 g for at least 30 ms, and no component heavier than 10 grams detaching
Footage from the 16 km/h collision test
17.48 km/h Impact speed Target 16 ± 2 km/h
9.24 g Peak g-force Required > 8 g
38.78 ms Held above 8 g Required ≥ 30 ms
VTI acceleration pulse recorded during Test 1: peak 9.24 g sustained for 38.78 ms at 17.48 km/h impact speed. Enlarge Official VTI acceleration pulse — Test I20260827-1
Test passed Occupant-restraint crash pulse (ECE R17 / R129)

Test 2 — High-Speed Collision

A much harder test. It uses the same impact force applied when testing the seat belts and child seats that protect people inside the car. SKiiBOX came through it with nothing coming loose.

Test load 80 kg total on the tow ball — 50 kg cargo + 30 kg box
Method Collision at approximately 50 km/h, at the crash pulse severity used for occupant-restraint certification
Pass requirement Impact pulse above 20 g for at least 15 ms over a 550–600 mm stopping distance, and no component heavier than 10 grams detaching
Footage from the 50 km/h collision test
48.90 km/h Impact speed Target ~50 km/h
22.68 g Peak g-force Required > 20 g
35.61 ms Held above 20 g Required ≥ 15 ms
VTI acceleration pulse recorded during Test 2: peak 22.68 g sustained for 35.61 ms at 48.9 km/h impact speed. Enlarge Official VTI acceleration pulse — Test I20260827-3

Both results were independently measured and documented by VTI on 2026-08-27, under the lab conditions specified above.

Shop SKiiBOX