SRAM SX 12-Speed

Part Number RD-SX-1-B1
Pull Ratio 1.08
Curve Coefficients 15.02, 0.965, 0.00774, -0.000138
Physical Low Limit 15.02
Physical High Limit 56.77
Pull Ratio Averaged Across Pulling Runs 1.073 +/- 0.015
Pull Ratio Averaged Across Relaxing Runs 1.081 +/- 0.024
Pull Ratio Averaged Across All Runs 1.077 +/- 0.022
Pull Ratio 95% Confidence Interval 1.055 to 1.098
Data Video https://youtu.be/MbIZ-nNYEKI
Analysis Video https://www.youtube.com/watch?v=HCI9IhSgN3Y
Pull Curve
Pull Ratio Curve. Second smallest and second largest cog positions marked by dots

Runs

2024-08-18 17-38 Pulling

Raw Measurement Data
Data and best fit line, excluding points taken at limits

2024-08-18 17-48 Relaxing

Raw Measurement Data
Data and best fit line, excluding points taken at limits

2024-08-25 07-50 Pulling

Raw Measurement Data
Data and best fit line, excluding points taken at limits

2024-08-25 07-59 Relaxing

Raw Measurement Data
Data and best fit line, excluding points taken at limits

2024-08-25 08-08 Pulling

Raw Measurement Data
Data and best fit line, excluding points taken at limits

2024-08-25 08-18 Relaxing

Raw Measurement Data
Data and best fit line, excluding points taken at limits