Hand Position

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.

Step 2.1 - When using the new Hands Adapter Add-on: 

You do not need the phone in the tool, so you should remove it to reduce the risk of it falling out.

Remove the Bottom Bracket adapter from the BB End Cap (Shimano, SRAM, etc.)

Connect the Hands Adapter to the BB Plug.

The cone extending from the hands tool should be in the same side of the ruler as the Saddle Adapter for longer reach and wide handlebars.

Position the metal bars on top of the hand position (on the hoods)


Slide the saddle adapter to position on center of saddle.

Take the measure from the Saddle Block.  In the example above the measure is 837mm (83.7cm)

The setup should look like the picture below now (without the Phone to eliminate risk of it falling out)

Step 2.2 - When Not using the Hands Adapter: 

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”.

Place ruler across bars

Measure from saddle centre

e.g. 937mm.

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!

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