This study primarily investigated deformation energies of bicycles in frontal collisions against a rigid barrier (beam). The impact forces measured for bicycle frontal collisions at a speed range from 20 to 35km/h were analysed and energy split was determined. The task included the execution of bike crash tests using diverse types of bicycle. Following these, we investigated deformation behaviour and identified deformation energy progression. The tests were conducted to establish if collision speed may be inferred from the deformation left on a bike. It turned out that varying degrees of deformation on the forks occurred due to unequal dummy loads during deformation, as well as due to different fork types. We also found that deformation of the bicycle rims (metal rims) only occurred in frontal collisions at speeds of more than 30 km/h.

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