Sport buggy recommended minimum age new born pushchair weight 65 kg carrycot pushchair seat backrest 3 positions harness system 5 point safety harness slider not adjustable wheel settings swivelling lockable wheel type solid rubber tyres number of wheels 4 safety bar with bumper bar footrest adjustable dimensions 89 x 60 x 102 cm dimensions folded 41 x 60 x 106 cm included in delivery pushchair seat chassis canopy footmuff shopping bag rain cove