It will read 90° when the pedal is at 6 o'clock and less than 90° otherwise.
Then add another angle for the knee joint angle. This way the angle is always less than 90° when the pedal is up, and 90° when it's at 6 o'clock. Set one of its leg horizontal and the other vertical, with the end of the horizontal leg tracking the pedal or a marker on the foot, aligned with the pedal, and the other two points placed in such a way that the background behind them will not change. You could add a regular angle tool to act as a reference for when the pedal hits the 6 o'clock mark. If you can show how you normally measure it for a single cycle maybe I can come up with a better solution. There might be a simpler way to do this with a custom tool and I'm not an bike fitting expert so please take the following as inspiration only. There is a tool for "angle-to-vertical" but unfortunately it is not usable with the angle-angle diagram at the moment. I need the angle value when the leg is in 6 oclockĭo you mean when the leg is vertical or when the crank is vertical and the pedal is at the 6 o'clock of the sprokets?
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