Wheel circumference and speed sensors
The circumference of a bike wheel is the distance around the outside of the wheel, including the tire. This measurement determines how far the bike travels in one full wheel rotation.
Many tires have the circumference printed on the sidewall. If it's not listed, you need to measure it manually.
Entering the correct wheel circumference is important when using a speed sensor with a classic trainer. ROUVY calculates your speed from the wheel rotations your sensor counts, so the value must be accurate for correct results.
If you're using a smart trainer, smart bike, or power meter, there's no need to enter wheel circumference. These devices send power data (watts) directly to the app.
How to set your wheel circumference in ROUVY
- Open the ROUVY app and log in.
- Click the Sensors icon in the top right corner.
- On the Classic trainer tile, click Add trainer.
- Choose the brand and type of your trainer.
- Click Wheel size.
- Select your wheel size.
- Click Continue.
That's it. Your wheel size is now set.
Connect your speed sensor, start a ride, and enjoy the virtual road ahead.
Setting up a classic trainer for the first time? See Connecting classic and turbo trainers for the whole setup.
For more help, feel free to contact us.