Enter the saddle height and inseam length into the calculator to determine the saddle setback. This calculator helps in adjusting the saddle position for optimal cycling comfort and performance.

Saddle Setback Formula

The following formula is used to calculate the saddle setback.

SS = SH - (IL * 0.883)

Variables:

  • SS is the saddle setback (mm)
  • SH is the saddle height (mm)
  • IL is the inseam length (mm)

To calculate the saddle setback, subtract 88.3% of the inseam length from the saddle height.

What is Saddle Setback?

Saddle setback is the horizontal distance from the bottom bracket to the point on the saddle directly above where the seatpost meets the saddle. It is an important measurement for setting up a bicycle for optimal riding position, comfort, and power transfer. Adjusting the saddle setback can help alleviate discomfort and improve pedaling efficiency.

How to Calculate Saddle Setback?

The following steps outline how to calculate the Saddle Setback.


  1. First, measure the saddle height (SH) from the center of the bottom bracket to the top of the saddle along the seatpost.
  2. Next, measure the inseam length (IL) from the crotch to the ground while standing barefoot with legs about 6-8 inches apart.
  3. Use the formula SS = SH – (IL * 0.883) to calculate the saddle setback (SS).
  4. Finally, adjust the saddle position on the seatpost to achieve the calculated saddle setback.
  5. After making the adjustments, verify the saddle setback with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Saddle Height (SH) = 750 mm

Inseam Length (IL) = 800 mm