# Carbon Drive Belt Tension Tool

> Gates Carbon Drive

Canonical page: [https://chrome-stats.com/d/id438346486](https://chrome-stats.com/d/id438346486)

## Overview

- **ID:** `id438346486`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Gates Corporation
- **Category:** Sports
- **Rating:** 2.70 / 5 (21 ratings)
- **Version:** 2.7.11
- **Last updated:** 2025-09-18
- **First published:** 2011-05-25
- **Size:** 84 MB
- **Data as of:** 2026-09-24
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/carbon-drive-belt-tension-tool/id438346486)
- **Privacy policy:** [https://www.gates.com/us/en/utility/privacy-policy](https://www.gates.com/us/en/utility/privacy-policy)

## Description

Gates Carbon Drive is the high-tech belt drive for bicycles, motorcycles, & scooters. This app measures belt tension sonically. Just pluck your belt like a guitar string and use the microphone on your phone to read the vibration frequency. Compare your bicycle belt’s frequency to the included chart to see if you need to adjust the tension. For scooter/motorcycle tension recommendations, compare to your vehicle owner’s manual.

Other available features for bicycles: 

Interested in key parameters of your bicycle belt drive like speed ratio or center distance? Want to know what belt lengths or sprocket sizes will fit your bicycle? What about comparing one bike to another to tweak your ratio perfectly? With our calculator, you can stay on top of the perfect setup for your drive.

- Find key parameters of your drive such as speed ratio and center distance.
- Change belt length or sprocket sizes to better suit your riding needs.

## Rankings

- #303,696 — Overall

## Review summary

The app is a free, potentially useful belt-tension reference with a calculator and chart, especially when a Gates gauge isn’t available. However, reviews show unreliable readings highly affected by noise, frequent mic issues, and inconsistent results. It lacks a recording feature and beginner-friendly guidance, and it even crashes on older devices. The UI is hard to read and some users feel the tool is unstable and not reliable for most use cases.

### Pros

- Free and accessible without needing a Gates Krikit gauge.
- Calculator and tension chart provide a helpful reference.
- Can be a useful no-cost belt-tension reference for occasional use.
- Useful for tensioning when used correctly in a quiet environment.

### Cons

- Readings are unreliable and inconsistent due to background noise and harmonics.
- Microphone/measurement tool is unreliable and can produce random readings or no readings.
- No recording or measurement log feature; unclear when a measurement is captured; no pause.
- Poor UI readability (dark text on a dark background) and lack of beginner guidance.
- Crashes on launch on older iPhone models/OS versions.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id438346486)