Every body, regardless of weight and height, is different. Your inseam-to-height ratio, the length of your arms, the size of your torso, etc. all factor into determining the correct sizing of a bike.
As a result, BMC highly suggests that you don't simply rely on our sizing charts, but also seek professional guidance and recommendations from your local BMC retailer.
Buying a BMC is an investment in your riding experience, ensure your ride is a great one by making sure you've been provided with the proper sized bike.