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As @ojs said length is measured steerer center to handlebar center,

The other measurements to be aware of are the steerer diameter and handlebar diameter. On road bikes steerer tubes are usually 1 1/8 inch and handlebars 31.8mm.

The numbers printed on the stem in the photo are max torque values for the steerer and bar clamp bolts. Note the units abbreviations of 'Nm' (Newton meters) and 'inlb' (inch pounds).

As @ojs said length is measured steerer center to handlebar center,

The other measurements to be aware of are the steerer diameter and handlebar diameter. On road bikes steerer tubes are usually 1 1/8 inch and handlebars 31.8mm.

As @ojs said length is measured steerer center to handlebar center,

The other measurements to be aware of are the steerer diameter and handlebar diameter. On road bikes steerer tubes are usually 1 1/8 inch and handlebars 31.8mm.

The numbers printed on the stem in the photo are max torque values for the steerer and bar clamp bolts. Note the units abbreviations of 'Nm' (Newton meters) and 'inlb' (inch pounds).

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As @ojs said length is measured steerer center to handlebar center,

The other measurements to be aware of are the steerer diameter and handlebar diameter. On road bikes steerer tubes are usually 1 1/8 inch and handlebars 31.8mm.