An analysis of the bike he used which�included the suspension, the engine and acceleration data carried out at HRC�s installations, in addition to�the analysis of the tyre tracks made by their bikes, were used as a reference to draw their conclusions. According to the report, the evaluation of the route of the front suspension, the speed of the back wheel, the route of the rear suspension and the data concerning engine speed taken from Kato�s bike show that the machine was in first gear, that the pilot was pulling on the front brake lever and reducing his speed as he approached the chicane. The wheel skidded and the machine totally lost its stability.

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Kato changed direction on the straight, at about 170kph his bike collided violently with a tyre barrier at around 150kph, after which he crashed in the adjacent foam barrier at a speed of approximately 140kph. Kato stayed on his bike while he went along the tyre barrier, but when bike hit the adjacent foam protection he was momentarily imprisoned between the barrier and bike which was forced upwards and he struck his head against the foam barrier. After this he flew off the bike and he fell on his back in the centre of the track, injuring his backbone.

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In the report, the commission makes clear that the cause of the death was the brutal collision on the ground and it also points out that although the modifications made to the track had made it more technical, that point had not been described as dangerous when the competition team did their training. The track also received a certificate from the FIM and all the relevant controls were made to organise the race. Nobody, even the riders, thought that the area was dangerous.

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