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Table 4 Maximum bump height that the wheelchair rolled over for different caster diameters and speeds

From: Manual wheelchair downhill stability: an analysis of factors affecting tip probability

Speed

Caster diameter

4 in

5 in

6 in

1 km/h

1.2 cm

1.5 cm

1.7 cm

3 km/h

1.7 cm

1.9 cm

2.2 cm

5 km/h

2.1 cm

2.4 cm

2.7 cm