3 wheeler pushchair recommended minimum age new born pushchair weight 95 kg backrest continuously adjustable brakes locking brake canopy with sun protection removable harness system 5 point safety harness suspension slider adjustable folding mechanism collapsible special feature upholstered seat wheel diameter rear 29 cm wheel diameter front 23 cm number of wheels 3 max load 15 kg safety bars removable with bumper bar footrest 4 way adjustabl