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X-Seam Measurement
Your X-Seam is a measurement used to place the pedals in the correct location with respect to the seat. To determine your X-Seam, wear your normal cycling shoes. Then sit flat on the floor with your lower back/tailbone against the wall and your legs flat on the floor. With the soles of your shoes perpendicular to the floor, measure the distance from the wall to the soles of your shoes. See Figure 1. You may find this easier to do with the help of a friend. If this is too uncomfortable for you, you may use a book between lower back/tailbone and the wall. Then subtract the thickness of the book from your measurement. See Figure 2.
We will use this measurement to set the telescopic boom length initially. During your delivery ride, this adjustment will be fine tuned as necessary to obtain the most optimum comfort for you.