Wahoo KICKR and SNAP require calibration for accurate performance. The KICKR, might require normal calibration once every 7 to 10 business days. However, the KICKR SNAP requires calibration before every ride for accurate power measurement.
Normal calibration is usually done using the Wahoo Fitness app which you can download from the iTunes store or Google Play for Android. Calibration takes only a few seconds but for best results, it’s recommended to warm up your trainer for about 10-minutes before performing the actual calibration.
To Perform a Normal Spindown on KICKR or KICKR SNAP follow these steps:
- Plug in your KICKR SNAP Power Trainer if you haven’t already.
- Ride for 10-minutes
- Make sure your trainer isn’t connected to any other app or device via Bluetooth. The blue light on the trainer should be blinking if it’s not paired to any device. Bluetooth can only pair to one device at a time so you will not be able to find it in the Wahoo Fitness app if your trainer is connected to something else.
- Ensure Bluetooth is turned on and open the Wahoo Fitness iOS App.
- Select “Sensors” in the bottom left corner
- Select the KICKR or KICKR SNAP from the list of saved sensors, then “Spindown”
- Select “Perform Spindown” and follow the instructions in the app
It’s recommended that you warm up your trainer for about 10 minutes before performing the spindown calibration.
For the KICKR SNAP, to get the best calibration results, make sure you do the following:
- Tighten the roller against the bike’s tire to prevent tire slip. To set the correct roller tension against the tire, use your hand to hold the flywheel stationary and attempt to rotate the bicycle wheel with your other hand. Wahoo recommends 2 full turns.
- Aim for a spindown between 9-16 seconds. If your spindown number is less than 9 seconds, you will need to loosen the tension. If more than 16 seconds, you will need to increase the tension. Add another 1/4 turn and do another spindown.
ADVANCED SPINDOWN CALIBRATION
Wahoo Fitness removed the option for Advanced Spindown calibration from the app. The option isn’t even listed in their KICKR support page. However, there is still a mention of it in the KICKR SNAP support page.
Advanced spin down isn’t needed on a regular basis but I had to do one on almost every KICKR I’ve had. You probably should do one when you first get your KICKR or KICKR SNAP to ensure the brake factor is correct. Generally, you don’t need to do another one unless you start seeing a drift in power reported or you leave your KICKR unplugged for an extended period of time.
To Perform an Advanced Factory Spindown Calibration:
- Ride your KICKR for about 10-minutes to warm it up.
- In the Fitness app go to Sensors -> KICKR -> Spindown.
- Tap on the paragraph above “Perform Spindown” five times to populate the Advanced Spindown option and follow the instructions on the screen.
Once you perform the advanced factory spindown calibration, your brak strength should be set correctly and power should be more stable.
Hope you find this helpful and thank you for reading!