To reproduce:
            BarSeries barSeries = new BarSeries("Performance", "RepresentativeName");
            barSeries.DataPoints.Add(new CategoricalDataPoint(177, "Harley"));
            barSeries.DataPoints.Add(new CategoricalDataPoint(128, "White"));
            barSeries.DataPoints.Add(new CategoricalDataPoint(143, "Smith"));
            barSeries.DataPoints.Add(new CategoricalDataPoint(111, "Jones"));
            barSeries.DataPoints.Add(new CategoricalDataPoint(118, "Marshall")); 
            this.radChartView1.Series.Add(barSeries);

            LinearAxis verticalAxis = radChartView1.Axes.Get<LinearAxis>(1);
            verticalAxis.MajorStep = 5;
            LinearAxisModel axisModel = verticalAxis.Model as LinearAxisModel;
            
            AxisScaleBreak scaleBreakItem = new AxisScaleBreak();
            scaleBreakItem.Name = "Item1";
            scaleBreakItem.From = 80d;
            scaleBreakItem.To = 120d;
            verticalAxis.ScaleBreaks.Add(scaleBreakItem);