This step is intended to be for road bikes, but you may wish to adapt the process for others styles too.
Step 1 – Measure Bottom Bracket height
Ensure that the bike is standing vertical, then use the BB block to measure the vertical height from the ground to the BB center (Read from the line with the arrow). Enter this measurement in the app. e.g. 272 mm
Step 2 – Measure Saddle centre to hand position
Whilst bike fit professionals generally prefer to use the handlebar centre as the main reference point, for a home mechanic I also find it useful to capture the riders hand position, particularly if you have multiple bikes with different handlebar dimensions, brake lever sizes or a difference in height between handlebar centre and the hand position.
Remove the saddle clamp from the ruler amd place it on the saddle to locate the centre.
Place the ruler horizontally across the bars on your normal hand position
Use a tape measure to measure from the slot in the centre of the saddle block to the front edge of the ruler. Capture this measurement in the app as “Saddle centre to hand position”.
Step 3 – Measure hand position height
Place the seat clamp back onto the tool and use it to measure the height from the floor to the hand position. Important: Take the measurement from the TOP of the block not the centre, due to the 20mm offset created at the bottom of the ruler with the BB end cap.
Enter this measurement into the app as “Hand position height from ground” (e.g. 937mm), the app will then calculate the drop from Saddle to the hand position.
Step 4 – Save Active data to profile
If you wish to save these measurements then press the “Save Active to profile” button before moving on
Congratulations you have now completed measuring your bike profile!