Modifed bikes create to use jbuilder & follow jsonapi.org

app/assets/javascripts/bikes.js

@@ -2,7 +2,7 @@ $('.btn').button();
 
 $("#add_bike_submit").click(function(){
 
-  json_data = { bike: {
+  json_data = { bikes: [{
       serial_number:      $("#serial_number").val(),
       bike_brand_id:      parseInt($("#bike_brand_id").val()),
       shop_id:            parseInt($("#shop_id").val()),
@@ -12,15 +12,16 @@ $("#add_bike_submit").click(function(){
       bike_condition_id:  parseInt($('input[name=bike_condition]:checked').val()),
       bike_purpose_id:    1,
       bike_wheel_size_id: parseInt($("#bike_wheel_size_id").val()),
-    }};
+    }]};
 
   $.ajax({
     url: $("#add_bike_submit").data("url"),
     type: "POST",
-    data: json_data,
+    data: JSON.stringify(json_data),
+    contentType: 'application/json',
     dataType: "json",
     success: function(data, status, xhr){
-      window.location = "/bikes/"+ data.bike.id;
+      window.location = data.bikes[0].href;
     },
     error: function(data, status ){
       displayFormErrors(data.responseJSON);