Shimano EDISON COMP I-12 Original Operating Instructions page 144

Operation
2 Pull handlebars into highest possible position.
Figure 158: All Up pulled into highest possible position
3 Turn handlebars 90° in a clockwise direction.
Figure 159: All Up screwed in
4 Place handlebars at required height
5 Close stem clamping lever.
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MY22H03 - 22_1.0_01.10.2021