Gear Ratio Calculator Free

Contains ads
3.5
65 reviews
10K+
Downloads
Content rating
Everyone
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About this app

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.

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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.

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If you want to add the data of chain wheel, sprocket and tire, or you do not want to see advertising. The paid version is available.
https://play.google.com/store/apps/details?id=jp.abt.lopnur.gearratiocalc
Updated on
Nov 12, 2012

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
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Ratings and reviews

4.0
60 reviews
A Google user
July 11, 2016
I have a modified dirt bike. It's mod is no muffler and five hole drilled in the spark arrester. It runs off of non-ethenol fuel and it has a lot of torque . It takes 4 seconds to hit 6th gear. It is both fast and very powerful. I need the correct gear and rpm measurement to get top of the line performance.
20 people found this review helpful
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A Google user
March 1, 2015
Good app, like the way you can visually "see" your gears, especially where they overlap. Just wish that you could limit the cadence on the graph, I don't often ride at 180rpm! Being able to limit the cadence would make the graph a bit clearer.
11 people found this review helpful
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A Google user
June 12, 2018
Not possible to use rear gears, that exists for many years. Even 2 teeth is unknown for this app...
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