layerDefaults.bubble.maxSize Number (default: 100)

The maximum symbol size for bubble layer symbols.

Example - Set default minSize for all bubble layers

<div id="map"></div>
<script>
    $("#map").kendoMap({
        layerDefaults: {
            bubble: {
                maxSize: 50
            }
        },
        layers: [{
            type: "bubble",
            dataSource: {
                data: [{
                    "location": [42, 12], "value": 10
                }, {
                    "location": [45, 15], "value": 25
                }]
            }
        }]
    });
</script>