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Cargo bikes, once a niche solution for tradespeople, are now —widelywidewidthwiden adopted by city councils seeking to cut delivery emissions. Their extended frames allow couriers to —transporttransportationtransportingtransports loads that once required a van, and narrow bike lanes pose no —obstacleobstructionobjectionopposition to their manoeuvrability. Critics, however, warn that heavier cargo models can —endangerendangeredendangermentdanger pedestrians if ridden carelessly.