Height of person in cm
The height range of the person for which this frame is best suited.
Some manufacturers such as Trek give a range for each size.
Eg: Their size 48 is for 158-163 cm, but it is simpler to just have one number half way between the two ends, because what anyone can do is look at the sizes and pick the closest one.
- cms is used rather than the awkward foot and inch, which are really stupid on some sites showing fractions of an inch: Eg: 5'6.1"
- This field is the primary sort for the geometry table. Reason for this is that some frame sizes are named using two letter codes like SM, MD, LG rather than numbers. Eg: Cannondale did this because they have a sloping top tube.