series.minSize Number (default: 5)

The minimum size of the chart bubble series marker.

Example - set the bubble chart series min marker size

<div id="chart"></div>
<script>
$("#chart").kendoChart({
  series: [ {
    type: "bubble",
    minSize: 40,
    data: [
      [1, 2, 3],
      [2, 3, 4]
    ]
  }]
});
</script>