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Cargo bikes, once a niche curiosity, are increasingly used by couriers and small businesses to —deliverdeliveringdelivereddelivery parcels through congested city centres. Compared with delivery vans, they produce no exhaust emissions and can —navigatenavigatingnavigatednavigation narrow lanes closed to motor traffic. Some municipalities now offer subsidies to encourage —businessesbusinessbusynessbusily to switch from diesel vans to electric-assisted cargo bikes for last-mile deliveries.