Let’s get you started…


From your Avio fitting kit, you will need the: Avio PowerSense unit, structural glue, alcohol wipe, and emery paper. You will also need a bike stand and pencil.

1. The Crank

You can leave the crank on the bike to fit PowerSense if you want to, although we recommend that after checking it will fit, you remove it.

After having removed the non-driveside crank (or not), identify where on the inside of the crank body the sensor will adhere. 

If you’ll be calibrating with a water bag, pop the bike up onto the workbench or into the stand.

2. The Sensor

This is a strain gauge, the magic of PowerSense. Quite a delicate bit of kit but nothing you need worry about. Just make sure you don’t touch it with a greasy finger or touch it with anything pointy or rough.

3. Positioning and Prep



You should make sure that PowerSense goes onto the crank straight, and will clear the bottom bracket area (as the BB area tends to bulge out towards the bearing) and will not touch anything during a pedal revolution.

A thorough prep will acheive the best result. Have your sandpaper at the ready!

Align the PowerSense unit with where it will eventually go, noticing where the sensor will adhere to the crank, and scrub where the sensor will go with the 600 wet dry sandpaper until you acheve a nice shiny finish, you can do this under a sink tap if you like; it stops the sandpaper gumming up (make sure you dry it thoroughly after though).

The surface once finished will need to be nice and shiny, Oh and dry..very very dry…like, super dry.

4. Attaching the unit

Have your PowerSense unit, super glue, weight, and quickgrip ready before you attach the sensor; everything laid out nice and neatly in the order in which you will use them.

A methodic approach will always acheive the best result

Peeling off the red 3M backing film from the the unit will reveal the sensor. Put a dab of the glue on that (ensuring complete coverage of the golden patch), align the bottom part of the unit body in the centre of the crank where it will go, then firmly close it down onto the crank in a rolling upward fashion.

Then put on your quickgrip right in the middle of the unit body above the sensor.  Leave for 5 minutes.

Five. Actual. Minutes…Set a timer, seriously.

5. Re-attach the crank

That’s actually it for this step. Just put it back on…properly of course.

You’ll need a pedal attached too.

6. Calibration




If you’re using a water bag a the calibration weight, which we recommend, then have the bike up in the stand, or up on the workbench; actually a really good way to do it.

Open up your Avio Calibrate app

With the pedal in the 6 o’clock position (straight down towards the ground) press the Factory Calib button on your app

Then press the Zero Off-Set button

Then move the crank to the 9 o’clock position (towards the front wheel hub perfectly horizontal)

Pull the rear brake

Hang the 10KG weight on the pedal in the very middle of the pedal…the VERY middle

Press the 10KG Calib button on the app

Remove the weight and move the crank back to 6 o’clock and press Zero Off-Set once more

In theory, once calibrated there should not be a need to re-calibrate the sensor, but sometimes you may want to repeat the process periodically, especially if:

  •   Your bike is being used in climates where the temperature is significantly different to the ones in which it was last Zero Off-Set ie. up a mountian!
  •   It has been a long time (12 months) since the last Zero Off-Set

6. Calibration





    Easy to install and calibrate



Fully waterproof to IP67

 Temperature proof


    Works with all bike cranks


75 to 100 hours of battery life

1 year warranty


Subscribe Now
Stay tuned to the latest updates and offers, direct to your inbox.
We respect your privacy.