Although motorcyclists accounted for just 0.7% of traffic in Wales in 2016, they represent a far higher share of killed or seriously injured motor vehicle drivers (41%).
Er mai dim ond 0.7% o draffig Cymru yn 2016 oedd beicwyr, maent yn cynrychioli cyfran lawer uwch o yrwyr cerbydau modur a gafodd eu lladd neu eu hanafu’n ddifrifol (41%).