Gear Ratio Calculator Lite

Name: Gear Ratio Calculator Lite
Rating: 2 (6 reviews)
Author: ABT Co., Ltd.

Utilities

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

6 Ratings
Age Rating

4+
Years
Category

Utilities
Developer

ABT Co., Ltd.
Language

EN
+ 3 More
Size

4.2
MB

This application calculates gear ratios for the road bike and the MTB. Combination of 22 types of chain wheel, 39 types of sprockets and 70 types of tires - Create a graph of the gear ratio and speed-cadence. By switch ON/OFF the display of each inner / center / outer gear, you can simulate the optimal gear ratio. This application helps you to choosing a satisfy replacement parts. -------------- This application allow the simulation of the gear ratio in the four charts. [km/h RPM] [mph RPM] [m/s RPM] Create a praph, the speed (km/h, mph, m/s) values will be displayed on the vertical axis, and the cadence (rpm) values will be displayed on the horizontal axis. This graph can be displayed the changes of the speed for each position of the gear in revolutions of the crank. The gear ratio to match the speed range you want, while viewing a graph, you can simulate a combination of parts. [Gear Ratio] Calculates and displays the gear ratio from each position of the selected chain wheel and sprocket. Increases the burden on the foot when shifting between long distance between points on the graph, the smaller it is close. [Gain Ratio] To caliculate and display the distance run by the crank comes full circle.

Ratings & Reviews

2.0

out of 5

6 Ratings

Outdated, doesn't support 12 speed cassettes
06/22/2021
Carlos from Philly
Very simple cadence/speed graph. Useful, but doesn't have 12 speed cassette support.
Outdated, doesn't support 12 speed cassettes
06/22/2021
Carlos from Philly

Very simple cadence/speed graph. Useful, but doesn't have 12 speed cassette support.
Very useful
06/08/2019
headquire
Was able to enter custom rings and cassette from an older MTB as I'm shopping for a different cassette, and this app works wonderfully. Only flaw I found so far is that the Gain graphs seem off, probably because it doesn't have a setting for crank length. I'm basing my decision mostly on cadence though, so gain is just a curiosity really. Thanks for this app!
Very useful
06/08/2019
headquire

Was able to enter custom rings and cassette from an older MTB as I'm shopping for a different cassette, and this app works wonderfully. Only flaw I found so far is that the Gain graphs seem off, probably because it doesn't have a setting for crank length. I'm basing my decision mostly on cadence though, so gain is just a curiosity really. Thanks for this app!
App closes when any button within settings is touched.
09/01/2025
Paper work challenged
The app will not allow any changes to the preloaded ratios, it won’t allow you to upgrade from within the app either, It will crash, or close upon button press.
App closes when any button within settings is touched.
09/01/2025
Paper work challenged

The app will not allow any changes to the preloaded ratios, it won’t allow you to upgrade from within the app either, It will crash, or close upon button press.
Poor gear selection.
11/12/2013
Pat McGroin173
The graphs are great. However, they are useless if you can't add your own gear size and many common sizes are not available. The ads integrate poorly and cover the graphs.
Poor gear selection.
11/12/2013
Pat McGroin173

The graphs are great. However, they are useless if you can't add your own gear size and many common sizes are not available. The ads integrate poorly and cover the graphs.

Improved stability on iOS10

Version 3.4.0 09/15/2017

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

Accessibility

Information

Seller: ABT Co Ltd
Size: 4.2 MB
Category: Utilities
Compatibility: Requires iOS 8.4 or later.

iPhone
Requires iOS 8.4 or later.

iPad
Requires iPadOS 8.4 or later.

iPod touch
Requires iOS 8.4 or later.

Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English and 3 more

English, French, Italian, Japanese
Age Rating: 4+

4+

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In-App Purchases: Yes

Unrestricted $2.99

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