Carbon Drive Belt Tension Tool

Carbon Drive Belt Tension Tool

Gates Carbon Drive

21 ratings
72 reviews
Free

Details

Released
May 25, 2011
Updated
September 18, 2025

Features

Carbon Drive Belt Tension Tool screenshot #1 for iPhone
Carbon Drive Belt Tension Tool screenshot #2 for iPhone
Carbon Drive Belt Tension Tool screenshot #3 for iPhone
Carbon Drive Belt Tension Tool screenshot #4 for iPhone
iphone
ipad
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About

This app uses your phone's microphone to measure the sonic vibration frequency of a belt drive. It helps you determine if your bicycle belt tension needs adjustment by comparing the frequency to a provided chart. It also offers a calculator for bicycle belt drive parameters like speed ratio and center distance.

✓Sonic belt tension measurement
✓Vibration frequency reading
✓Belt tension adjustment guide
✓Speed ratio calculation
✓Center distance calculation
✓Belt length and sprocket size adjustment
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What's New in Carbon Drive Belt Tension Tool

2.7.11

September 18, 2025

Bug Fixes

User reviews

Useless

Opens up on with the mic running and starts to register frequencies before the belt is plucked. Far too sensitive. Very inconsistent readings. No way to clear all frequencies already recorded. Total waste of time.

Easy belt tension

Thanks for the free app. Used on cvt v belt and timing belts. Clear instructions now ensure good measurements.

Stürzt immer ab

Stürzt ab bevor jemals irgendein Geräusch aufgenommen wurde. Konnte es noch nie starten. Wieder gelöscht

Terribly unreliable

I’m an audio engineer and I know for a fact that a carbon belt would not vibrate at 20,30,40,50,70,80 Hz with subsequent twangs. It must be reading the higher harmonics.

OK

Trzeba trochę wprawy i naprawdę cichego pomieszczenia, wtedy daje powtarzalne i wiarygodne wyniki. Dolną część telefonu (gdzie znajduje się mikrofon) ustawić bardzo blisko paska, tam gdzie nim szarpiemy. Pasek ustawiony idealnie :)

Developer apps

FAQ

What does the Carbon Drive Belt Tension Tool app do?

This app measures the sonic vibration frequency of your belt drive using your phone's microphone. It helps you determine if your bicycle belt tension needs adjustment by comparing the frequency to a provided chart. It also includes a calculator for key bicycle belt drive parameters.

How do I measure belt tension with the app?

To measure belt tension, you simply pluck your belt like a guitar string. The app then uses your phone's microphone to read the vibration frequency. You can then compare this frequency to the included chart for bicycles or your vehicle's owner's manual for scooters/motorcycles.

Is this app free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, suggesting a completely free experience for users.

What bicycle drive parameters can I calculate with this app?

The app allows you to find key parameters of your bicycle belt drive, such as speed ratio and center distance. You can also change belt length or sprocket sizes to better suit your riding needs and compare different bike setups.

What devices is this app compatible with?

The app utilizes the microphone on your phone to read vibration frequencies. While specific operating system compatibility isn't detailed, it's designed to work on smartphones that have a functional microphone.